CN110273909A - A kind of intelligent fastener and on-line monitoring system that can perceive fastener nut loosening - Google Patents
A kind of intelligent fastener and on-line monitoring system that can perceive fastener nut loosening Download PDFInfo
- Publication number
- CN110273909A CN110273909A CN201910487764.0A CN201910487764A CN110273909A CN 110273909 A CN110273909 A CN 110273909A CN 201910487764 A CN201910487764 A CN 201910487764A CN 110273909 A CN110273909 A CN 110273909A
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- Prior art keywords
- fastener
- nut
- angle
- perceive
- data
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 238000005273 aeration Methods 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims description 11
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002372 labelling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/95—Constructional details of connections not covered for in other groups of this subclass with markings, colours, indicators or the like
Abstract
The invention discloses a kind of intelligent fasteners that can perceive fastener nut loosening, including fastener body, after the fixed part of the fastener body is connect with connected piece, its threaded portion and nut tightening, fixed cover is provided on the nut, the inner cavity of the fixed cover is provided with the angle detection device to detect the relative rotation angle that the nut and the fastener body are occurred.The invention also discloses a kind of on-line monitoring systems that can perceive fastener nut loosening.The present invention is able to detect the relative rotation angle that nut and fastener body are occurred, and then obtains aeration level, has the advantages that precision height, result data compared with prior art.And the relative rotation angle measured can be transferred in remote server by wired or wireless signal emission module, make aeration level on-line monitoring.
Description
Technical field
The present invention relates to fastener areas, in particular to a kind of intelligent fastener that can perceive fastener nut loosening and
Line monitoring system.
Background technique
Due to the convenience of needs and manufacture, installation, maintenance, transport in production operation, container is often made into detachably
Structure, flanged joint is the most common Detachable connection structure.Requirement of the flanged joint in addition to meeting strength of flange, rigidity
Outside, also to guarantee not reveal between operation operating condition lower flange face.Flanged joint relies on bolt presses flange, thus pad
Piece compression reaches sealing effect.
Currently, monitoring bolt, which loosens method, to be had: moment method, setting-out labelling method.Various method characteristics are as follows:
Whether moment method is urgent with measuring spanner for force moment measurement, is domestic and international method widely used for a long time.Due to
It measures pretightning force by torsion indirectly, and the different coefficient of friction of identical torsion corresponds to different pretightning forces.So its error
Up to +/- 35% or more.And all bolts require measuring spanner for force moment urgent confirmation, workload are very big again.
Draw lines labelling method, can only be difficult to differentiate by naked eyes probably judgement, the naked eyes of minor rotation caused by loosening.
Above method accurate monitoring bolt cannot all loosen very well.
Summary of the invention
It is of the invention one of the objects of the present invention is to provide a kind of intelligent fastener that can perceive fastener nut loosening
The second purpose is to provide a kind of on-line monitoring system that can perceive fastener nut loosening.
Technical problem solved by the invention can be realized using following technical scheme:
A kind of intelligent fastener that can perceive fastener nut loosening, including fastener body, the fastener body
After fixed part is connect with connected piece, threaded portion and nut tightening, which is characterized in that fixed cover is provided on the nut,
The inner cavity of the fixed cover is provided with to detect relative rotation angle that the nut and the fastener body are occurred
Angle detection device.
In a preferred embodiment of the invention, the angle detection device include setting in the fixed cover to
Detect the TMR tunnel magneto-resistive sensor component or GMR of the relative rotation angle that the nut and the fastener body are occurred
Magnetic field sensing device assembly.
In a preferred embodiment of the invention, the angle detection device include setting in the fixed cover to
The encoder for the relative rotation angle that the nut and the fastener body are occurred is detected, the bottom of the encoder is fixed
At the top of the fixed cover inner wall and its output shaft is connect with the fastener body end.
In a preferred embodiment of the invention, the angle detection device has corresponding with exogenous data receiving end
Wired or wireless signal emission module.
A kind of on-line monitoring system that can perceive fastener nut loosening, including energy perception as described in the above technical scheme
Fastener nut loosen intelligent fastener and can be to nut acquired in the angle detection device and fastener body institute
The data processing system that the relative rotation angle of generation is handled.
In a preferred embodiment of the invention, the data processing system is to nut acquired in angle detection device
The mode that the relative rotation angle occurred with fastener body is handled include but is not limited to the relative rotation angle into
Row is calculated aeration level or directly acquires display to the relative rotation angle.
In a preferred embodiment of the invention, 100/ β of aeration level α=θ *, wherein the unit of α is %, β
To loosen rotational angle entirely, the unit of β is angle, can be obtained by theoretical calculation, and θ is occurred by nut and fastener body
Angle is relatively rotated, the unit of θ is angle.
In a preferred embodiment of the invention, the data processing system includes data receiver, data processor
And remote server, the data receiver are connect with the angle detection device, the data receiver send data to institute
It states data processor to be handled, converts the relative rotation angle-data that the nut is occurred with the fastener body to
Aeration level data or the data directly displayed are sent again later to the remote server.
In a preferred embodiment of the invention, the remote server is also connect with warning device, when the distal end
When the relative rotation angle-data that server receives the nut and the fastener body is occurred is more than pre-set value, institute
Warning device is stated to sound an alarm.
Due to using technical solution as above, the present invention is able to detect opposite turn that nut and fastener body are occurred
Dynamic angle, and then aeration level is obtained, have the advantages that precision height, result data compared with prior art.And it can incite somebody to action
The relative rotation angle measured is transferred in remote server by wired or wireless signal emission module, is made aeration level and is existed
Line monitoring.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram for the monitoring device that can perceive fastener nut loosening of the present invention.
Fig. 2 is a kind of structural schematic diagram for the monitoring system that can perceive fastener nut loosening of the present invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below into
One step illustrates the present invention.
A kind of intelligent fastener that can perceive fastener nut loosening shown in Figure 1, including fastener body 100,
Fastener body 100 in the present embodiment is bolt, and the bar portion of bolt sequentially passes through the first connected piece 10 and second and is connected
Part 20, then the threaded portion 110 of bolt screws after buckling gasket 30 with nut 200.Fixed cover 300 is provided on nut 200,
The inner cavity of fixed cover 300 is provided with the angle to detect the relative rotation angle that nut 200 and fastener body 100 are occurred
Detection device.
Angle detection device in the present embodiment includes that setting is covered in 300 fixed to detect nut 200 and fastener
The TMR tunnel magneto-resistive sensor for the relative rotation angle that ontology 100 is occurred, TMR tunnel magneto-resistive sensor component include fixing
In the fixed TMR sensor covered in 300 and the magnetic patch 420 for being fixed on 100 end of fastener body.As long as nut 200 and tight
Firmware ontology 100 relatively rotates, and TMR sensor 410 can sense magnetic field caused by the change of 420 relative position of magnetic patch
Variation can measure rotational angle, and TMR sensor is the prior art, can be bought on the market, working principle is also ability
The common knowledge in domain.Certainly, angle detection device can also be other forms, for example, angle detection device is GMR magnetic field sensing
Device assembly, working principle is approximate with TMR tunnel magneto-resistive sensor component, is also the prior art.Or for example angle detects
Device also may include the volume being arranged in fixed cover to detect the relative rotation angle that nut and fastener body are occurred
Code device, the bottom of encoder is fixed at the top of fixed cover inner wall and its output shaft is connect with fastener body end.As long as nut
It relatively rotates with fastener body, encoder can sense that nut and fastener body relative position change, and can survey
Rotational angle out, and encoder is the prior art, and can be bought on the market.
Angle detection device has wired or wireless signal emission module 411 corresponding with exogenous data receiving end, has
Line or wireless signal transmitting module can be bought in the market, be the prior art.Fixed cover 300 is transparence, by not having
The material of signal shielding effect is made, and the inside of fixed cover 300 is avoided to form signal shielding region.
A kind of on-line monitoring system that can perceive fastener nut loosening shown in Figure 2, including fastener can be perceived
The intelligent fastener and data processing system of nut loosening, data processing system can be to the nuts acquired in angle detection device
The 200 relative rotation angles occurred with fastener body 100 are handled.
The data processing system of the present embodiment is to nut 200 acquired in angle detection device and 100 institute of fastener body
The mode that the relative rotation angle of generation is handled includes but is not limited to the relative rotation angle to carry out that loosening is calculated
Degree directly acquires display to the relative rotation angle.100/ β of aeration level α=θ *, wherein the unit of α is %, and β is complete
Rotational angle is loosened, the unit of β is angle, can be obtained by theoretical calculation, such as by taking M30 bolt as an example, the Young mould of bolt
M=210 is measured, bolt effective cross section product is D=561mm2, screw pitch P=3.5mm, full pine state pretightning force is 0,
Complete tightly state pretightning force is F=384KN, and the place of being bolted participates in the original length L=200mm of elongation strain, by full pine to entirely
Elongation △ L=F*L/ (E*D)=0.651897mm of tight state bolt.Angle beta=360* that this elongation is rotated by nut
△ L/P=67.05 °, such as the M30 bolt nut 200 and fastener as acquired in angle detection device under complete tight state
The relative rotation angle, θ that ontology 100 is occurred is 6.7 °, then according to 100/ β of formula aeration level α=θ *, can obtain M30 at this time
Aeration level α=10% of bolt.
Data processing system in the present embodiment includes data receiver 500, data processor 600 and remote server
700.Data receiver 500 is connect with the wired or wireless signal emission module 411 of angle detection device, data receiver 500
Data are sent to data processor 600 and are handled, the relative rotation angle that nut 200 and fastener body 100 are occurred
The data that data are converted into aeration level data or directly display are sent again later to remote server 700.
When work, nut 200 and fastener body 100 is caused small rotation, angle detection device energy occur when loosening
It monitors and transfers data to data processing system and handled, quantify rotational angle, then bolt is calculated by above-mentioned formula
Aeration level.
In order to enable the present invention can sound an alarm in real time, the remote server 700 in the present embodiment is gone back and warning device
800 connections surpass when remote server 700 receives the relative rotation angle-data that nut 200 and fastener body 100 are occurred
When crossing pre-set value, warning device 800 is sounded an alarm, and realizes on-line monitoring function.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (9)
1. a kind of intelligent fastener that can perceive fastener nut loosening, including fastener body, the fastener body are consolidated
Determine after portion connect with connected piece, threaded portion and nut tightening, which is characterized in that fixed cover, institute are provided on the nut
The inner cavity for stating fixed cover is provided with angle to detect the relative rotation angle that the nut and the fastener body are occurred
Spend detection device.
2. a kind of intelligent fastener that can perceive fastener nut loosening as described in claim 1, which is characterized in that the angle
Degree detection device include be arranged in the fixed cover to detect the nut and the fastener body occurred it is opposite
The TMR tunnel magneto-resistive sensor component or GMR magnetic field sensing device assembly of rotational angle.
3. a kind of intelligent fastener that can perceive fastener nut loosening as described in claim 1, which is characterized in that the angle
Degree detection device include be arranged in the fixed cover to detect the nut and the fastener body occurred it is opposite
The encoder of rotational angle, the bottom of the encoder is fixed at the top of the fixed cover inner wall and its output shaft and the fastening
The connection of part body end.
4. a kind of intelligent fastener that can perceive fastener nut loosening as described in claim 1, which is characterized in that the angle
Spending detection device has wired or wireless signal emission module corresponding with exogenous data receiving end.
5. a kind of on-line monitoring system that can perceive fastener nut loosening, which is characterized in that including such as the claims 1-4
Can be perceived described in middle any claim fastener nut loosening intelligent fastener and can be to the angle detection device
The data processing system that the relative rotation angle that acquired nut and fastener body is occurred is handled.
6. a kind of on-line monitoring system that can perceive fastener nut loosening as claimed in claim 5, which is characterized in that described
At the relative rotation angle that nut acquired in angle detection device occurs with fastener body for data processing system
The mode of reason includes but is not limited to carry out that aeration level or straight to the relative rotation angle is calculated to the relative rotation angle
It obtains and takes display.
7. a kind of on-line monitoring system that can perceive fastener nut loosening as claimed in claim 5, the aeration level α=
100/ β of θ *, wherein the unit of α is %, and β is full loosening rotational angle, and the unit of β is angle, can be obtained by theoretical calculation, θ
The relative rotation angle occurred by nut and fastener body, the unit of θ are angle.
8. a kind of on-line monitoring system that can perceive fastener nut loosening as claimed in claim 5, the data processing system
System includes data receiver, data processor and remote server, and the data receiver is connect with the angle detection device,
Data are sent to the data processor and are handled by the data receiver, and the nut and the fastener body are sent out
The data that raw relative rotation angle-data is converted into aeration level data or directly displays are sent later to the distal end again and are taken
Business device.
9. a kind of on-line monitoring system that can perceive fastener nut loosening as claimed in claim 8, the remote server
It is also connect with warning device, when the remote server receives opposite turn that the nut and the fastener body are occurred
When dynamic angle-data is more than pre-set value, the warning device is sounded an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910487764.0A CN110273909A (en) | 2019-06-05 | 2019-06-05 | A kind of intelligent fastener and on-line monitoring system that can perceive fastener nut loosening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910487764.0A CN110273909A (en) | 2019-06-05 | 2019-06-05 | A kind of intelligent fastener and on-line monitoring system that can perceive fastener nut loosening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110273909A true CN110273909A (en) | 2019-09-24 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910487764.0A Pending CN110273909A (en) | 2019-06-05 | 2019-06-05 | A kind of intelligent fastener and on-line monitoring system that can perceive fastener nut loosening |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111323843A (en) * | 2020-03-17 | 2020-06-23 | 中煤科工集团重庆研究院有限公司 | Device for detecting fastening state of mining explosion-proof shell fastener |
| CN112082471A (en) * | 2020-09-16 | 2020-12-15 | 罗治军 | Formula wind generating set bolt on-line monitoring device is inhaled to magnetism |
| CN112267981A (en) * | 2020-11-12 | 2021-01-26 | 龙源（北京）风电工程技术有限公司 | Monitoring device and monitoring method for monitoring bolt loosening state and wind turbine generator |
| CN112392830A (en) * | 2020-11-12 | 2021-02-23 | 罗洋 | High-precision anti-loosening early warning intelligent nut and intelligent threaded fastener |
| CN113236653A (en) * | 2021-04-21 | 2021-08-10 | 西南交通大学 | Bolt structure with loosening detection function and bolt loosening detection method |
| CN113790696A (en) * | 2020-05-26 | 2021-12-14 | 中国石油天然气股份有限公司 | Pumping unit monitoring equipment and pumping unit system |
| CN113819127A (en) * | 2021-09-24 | 2021-12-21 | 国网山东省电力公司曲阜市供电公司 | Connecting device convenient for checking thread loosening condition and mounting method |
| DE102022002785A1 (en) | 2022-07-28 | 2024-02-08 | Hochschule für Angewandte Wissenschaften Hamburg Körperschaft des Öffentlichen Rechts | Screw assembly tool with magnetic sensor array for torsion measurement |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111323843A (en) * | 2020-03-17 | 2020-06-23 | 中煤科工集团重庆研究院有限公司 | Device for detecting fastening state of mining explosion-proof shell fastener |
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| CN113790696A (en) * | 2020-05-26 | 2021-12-14 | 中国石油天然气股份有限公司 | Pumping unit monitoring equipment and pumping unit system |
| CN113790696B (en) * | 2020-05-26 | 2023-06-30 | 中国石油天然气股份有限公司 | Pumping unit monitoring equipment and pumping unit system |
| CN112082471A (en) * | 2020-09-16 | 2020-12-15 | 罗治军 | Formula wind generating set bolt on-line monitoring device is inhaled to magnetism |
| CN112267981A (en) * | 2020-11-12 | 2021-01-26 | 龙源（北京）风电工程技术有限公司 | Monitoring device and monitoring method for monitoring bolt loosening state and wind turbine generator |
| CN112392830A (en) * | 2020-11-12 | 2021-02-23 | 罗洋 | High-precision anti-loosening early warning intelligent nut and intelligent threaded fastener |
| CN113236653A (en) * | 2021-04-21 | 2021-08-10 | 西南交通大学 | Bolt structure with loosening detection function and bolt loosening detection method |
| CN113819127A (en) * | 2021-09-24 | 2021-12-21 | 国网山东省电力公司曲阜市供电公司 | Connecting device convenient for checking thread loosening condition and mounting method |
| CN113819127B (en) * | 2021-09-24 | 2023-04-11 | 国网山东省电力公司曲阜市供电公司 | Connecting device convenient for checking thread loosening condition and mounting method |
| DE102022002785A1 (en) | 2022-07-28 | 2024-02-08 | Hochschule für Angewandte Wissenschaften Hamburg Körperschaft des Öffentlichen Rechts | Screw assembly tool with magnetic sensor array for torsion measurement |
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