CN101354300A - Bolt strained detection device - Google Patents
Bolt strained detection device Download PDFInfo
- Publication number
- CN101354300A CN101354300A CNA2008102228163A CN200810222816A CN101354300A CN 101354300 A CN101354300 A CN 101354300A CN A2008102228163 A CNA2008102228163 A CN A2008102228163A CN 200810222816 A CN200810222816 A CN 200810222816A CN 101354300 A CN101354300 A CN 101354300A
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- CN
- China
- Prior art keywords
- bolt
- detection device
- screw rod
- foil gauge
- bolt strained
- 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
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- 238000001514 detection method Methods 0.000 title claims abstract description 9
- 239000011888 foil Substances 0.000 claims abstract description 15
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 238000010276 construction Methods 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention relates to a detection device of the load bearing of a bolt, which pertains to the technical field of bolt connection in a steel structure and is characterized by comprising two or more than two strain foils which are respectively adhered in grooves with depth within 1mm that are dug in an axially symmetrical manner along the periphery of a screw rod at one end of a bolt head, and two or more than two lead wires which enter from a through hole drilled through the bolt head and respectively connected with the strain foils; the position of the through hole and the grooves are positioned on the same straight line parallel to an axis of the bolt. The detection device can accurately measure the load bearing state of the bolt in real time without affecting the load bearing capacity of the bolt or affecting the using of the bolt.
Description
Technical field
The present invention relates to Structural Engineering steel construction technical field, especially the bolt strained detection and the research of steel structure bolt connection.
Technical background
Along with a large amount of constructions of skyscraper, bridge etc., steel construction is used more and more.Because connecting, bolt has easy construction, the strength of joint advantages of higher, and steel structure node often adopts bolt to connect in the structural design.But research is understood abundant inadequately to bolt group distribution of internal force at present, shortage realizes detecting in real time to bolt strained state and the effective ways of monitoring, and detection and the monitoring with large-scale important structure connection reliability carried out in the correlative study that is unfavorable for the steel structure bolt connected node.How real-time, the accurate and effective bolt strained state of measurement is a problem demanding prompt solution in scientific research and the engineering practice.
Summary of the invention
At the problem that can't measure, monitor bolt strained state in the steel construction in the prior art, the present invention proposes a kind of bolt strained detection device, and this method has realized bolt strained real-time detection on the basis of not damaging the bolt bearing capacity.
The invention is characterized in, contain: foil gauge, is attached to respectively in the groove of the degree of depth in 1mm that excavates symmetrically along the first end screw rod of bolt circumferential axis totally by two; Lead, totally two, bore saturating perforation by bolt head and enter and be connected respectively with described two foil gauges, the position of described perforation and the described groove that excavates symmetrically along this screw shaft are positioned on the same straight line that is parallel to described screw axis.Second kind of technical scheme of the present invention is: described foil gauge is more than two, is distributed on the described groove along described screw rod circumferencial direction.
Beneficial effect:
(1) the bolt groove depth is no more than 1mm does not influence the bolt bearing capacity, does not influence construction and use.
(2) realize real-time, accurately measurement bolt strained in the practical structures be can be used for fields such as node force analysis, actual engineering monitoring.
Description of drawings
Fig. 1 is a structural front view of the present invention.Fig. 2 is the structure cut-open view along the A-A direction of the present invention.
Concrete performance
Embodiment (referring to Fig. 1, Fig. 2): this method is a kind of bolt strained detection method that relates to Structural Engineering, is realized by 2～4 foil gauges of symmetric arrangement on screw rod.Bolt is made up of bolt head 1, screw rod 2, nut 3 and foil gauge 4.Rotational symmetry is offered the groove (all evenly distributing along the body of bolt perimeter of section) that 2～4 degree of depth are no more than 1mm in the folded panel thickness of screw rod 2 bolts center, and correspondence position boring 11 on bolt head 1.Paste foil gauge 4 in the groove, cover with the protection foil gauge, draw with lead connection foil gauge 4 and by perforate 11 on the bolt head 1, and seal with other materials such as rubber or resins with resin or other material.By engineering practice of construction step above-mentioned bolt is installed, can be write down each some position strain data of the same cross section of screw rod, calculate the body of bolt internal stress and distribute and bolt strained state by the data that detect foil gauge 4.
Claims (3)
1, bolt strained pick-up unit is characterized in that, contains: foil gauge, is attached to respectively in the groove of the degree of depth in 1mm that excavates symmetrically along the screw rod circumferential axis of the first end of bolt totally by two; Lead, totally two, bore saturating perforation by bolt head and enter and be connected respectively with described two foil gauges, the position of described perforation and the described groove that excavates symmetrically along this screw shaft are positioned on the same straight line that is parallel to described screw axis.
2, bolt strained pick-up unit according to claim 1 is characterized in that, described foil gauge is more than two, is distributed on the described groove along described screw rod circumferencial direction.
3, according to claim 1 or 2, bolt strained detection device is characterized in that, described foil gauge is stamped one deck resin type diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102228163A CN101354300A (en) | 2008-09-19 | 2008-09-19 | Bolt strained detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102228163A CN101354300A (en) | 2008-09-19 | 2008-09-19 | Bolt strained detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101354300A true CN101354300A (en) | 2009-01-28 |
Family
ID=40307218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102228163A Pending CN101354300A (en) | 2008-09-19 | 2008-09-19 | Bolt strained detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101354300A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636304A (en) * | 2012-04-26 | 2012-08-15 | 哈尔滨电机厂有限责任公司 | Torque measurement structure of water guide flap shaft of standardized high-precision model |
| CN104198106A (en) * | 2014-08-15 | 2014-12-10 | 中国石油天然气集团公司 | Bolt stress detecting device |
| CN104421300A (en) * | 2013-09-02 | 2015-03-18 | 优钢机械股份有限公司 | Screw torque force sensing set and electronic screw thereof |
| CN104732844A (en) * | 2015-03-23 | 2015-06-24 | 江苏神通阀门股份有限公司 | Screw-down effect presentation device of double-screw bolts |
| CN106289622A (en) * | 2016-10-31 | 2017-01-04 | 西安建筑科技大学 | A kind of device and method measuring high-strength bolt auxiliary connection torque coefficient |
| CN106872092A (en) * | 2015-12-11 | 2017-06-20 | 天津航天瑞莱科技有限公司 | A kind of method of testing of dynamometry bolt and axial force |
| CN107310664A (en) * | 2017-08-14 | 2017-11-03 | 郝翻翻 | A kind of folding bicycle and its intelligence control system with perambulator function |
| CN107850103A (en) * | 2015-07-09 | 2018-03-27 | Texys.Fr公司 | A kind of screw with foil gauge, the stretching born for measuring bolt and/or shear stress |
| CN109990939A (en) * | 2019-05-10 | 2019-07-09 | 南京工程学院 | A kind of device of roller bolt stress in triangulation feed screw nut |
| CN110196132A (en) * | 2019-06-04 | 2019-09-03 | 韩志豪 | Bolt sensor component |
| CN110231112A (en) * | 2019-06-12 | 2019-09-13 | 华东理工大学 | A kind of high-temperature flange bolt force measuring method and its measuring device |
| CN111504538A (en) * | 2020-05-14 | 2020-08-07 | 东风汽车股份有限公司 | Method for measuring tight edge tension of engine timing chain |
-
2008
- 2008-09-19 CN CNA2008102228163A patent/CN101354300A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636304A (en) * | 2012-04-26 | 2012-08-15 | 哈尔滨电机厂有限责任公司 | Torque measurement structure of water guide flap shaft of standardized high-precision model |
| CN104421300A (en) * | 2013-09-02 | 2015-03-18 | 优钢机械股份有限公司 | Screw torque force sensing set and electronic screw thereof |
| CN104198106A (en) * | 2014-08-15 | 2014-12-10 | 中国石油天然气集团公司 | Bolt stress detecting device |
| CN104732844A (en) * | 2015-03-23 | 2015-06-24 | 江苏神通阀门股份有限公司 | Screw-down effect presentation device of double-screw bolts |
| CN107850103B (en) * | 2015-07-09 | 2019-09-13 | Texys.Fr公司 | A kind of screw with foil gauge, the stretching born for measuring bolt and/or shear stress |
| CN107850103A (en) * | 2015-07-09 | 2018-03-27 | Texys.Fr公司 | A kind of screw with foil gauge, the stretching born for measuring bolt and/or shear stress |
| CN106872092A (en) * | 2015-12-11 | 2017-06-20 | 天津航天瑞莱科技有限公司 | A kind of method of testing of dynamometry bolt and axial force |
| CN106289622A (en) * | 2016-10-31 | 2017-01-04 | 西安建筑科技大学 | A kind of device and method measuring high-strength bolt auxiliary connection torque coefficient |
| CN107310664A (en) * | 2017-08-14 | 2017-11-03 | 郝翻翻 | A kind of folding bicycle and its intelligence control system with perambulator function |
| CN109990939A (en) * | 2019-05-10 | 2019-07-09 | 南京工程学院 | A kind of device of roller bolt stress in triangulation feed screw nut |
| CN110196132A (en) * | 2019-06-04 | 2019-09-03 | 韩志豪 | Bolt sensor component |
| CN110231112A (en) * | 2019-06-12 | 2019-09-13 | 华东理工大学 | A kind of high-temperature flange bolt force measuring method and its measuring device |
| CN111504538A (en) * | 2020-05-14 | 2020-08-07 | 东风汽车股份有限公司 | Method for measuring tight edge tension of engine timing chain |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |