CN208206469U - A kind of fastener loosening detection device - Google Patents
A kind of fastener loosening detection device Download PDFInfo
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- CN208206469U CN208206469U CN201820862876.0U CN201820862876U CN208206469U CN 208206469 U CN208206469 U CN 208206469U CN 201820862876 U CN201820862876 U CN 201820862876U CN 208206469 U CN208206469 U CN 208206469U
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Abstract
The utility model discloses a kind of fastener loosening detection device, is related to mechanical fastening technique field.The device is made of the fastener with handmarking, supporting module, power supply module, image-forming module, lighting module, data processing and display module.In the movable part and fixation member surface manufacturing artificial indicia patterns of fastener, the artificial indicia patterns image is shot by image-forming module, by image input data processing and display module, carry out image procossing, according to handmarking's pattern form prior information, determine whether fastener loosens, and shooting image and processing result are shown.Whether the utility model does not change existing fastener mechanical structure, need to only be loosened after shooting image by spectral discrimination fastener in the fastener surface manufacturing artificial identification pattern fastened, has the remarkable advantages such as construction is simple, operation and maintenance be at low cost.
Description
Technical field
The utility model relates to mechanical fastening technique field, refers in particular to a kind of fastener loosening detection device.
Background technique
Fastener is made of nuts and bolt, is seen everywhere in daily production and life, is the common connection of one kind, fixed
The part of equipment.It is affected by vibration in the equipment use process such as Large-Scale Equipment, bridge, train, inevitably make spiral shell
The fasteners such as mother, bolt loosen, and the loosening of fastener seriously affects goods and materials and personal safety.Therefore it needs to grasp in real time
Fastener loosens situation.
Currently, conventional method is to carry out manual inspection to all fasteners, fastener is detected one by one using spanner,
But this manual detection mode, need to expend a large amount of man power and material.
For the on-line monitoring for realizing fastener state, patent CN201210311363.8 discloses " bolt and nut fastener
Loosening detection device ", the additional gear on nut, when nut loosening, band moving gear rotate, recycle sensor measurement tooth
Rotation amount is taken turns, for determining nut loosening.This method needs the installation detecting device on each nut, at high cost, and construction is difficult
Degree is big.Patent CN201510794214.5 discloses that " a kind of intelligence roofing fastener loosens detection management system and its detection pipe
Reason method ", it is detected and is alerted with bolt looseness using height change value when displacement sensor nut loosening.This method needs
Will on each fastener installation detecting device, it is also necessary to detection device power, at high cost, difficulty of construction is big.
For this purpose, there is an urgent need to one kind not to significantly change existing fastener use state, simple, effective fastener loosens inspection
Survey device.
Utility model content
The purpose of the utility model is to provide one kind not to significantly change existing fastener use state, can be simple, effective
Detect the device that fastener loosens in ground.
The technical solution of the utility model is: a kind of fastener loosens detection device, it by the fastener with handmarking,
Supporting module, power supply module, image-forming module, lighting module, data processing and display module form, and the band handmarking's is tight
Firmware is the movable part and fixation member surface manufacturing artificial indicia patterns in fastener；The movable part of the fastener is
Refer to nut or bolt, the fixation member of the fastener refers to for the screw rod of attaching nut or the pedestal for connecting bolt；
The supporting module is for installing and fixed power supply module, image-forming module, lighting module and data processing and display module；It is described
Power supply module is that lighting module, image-forming module, data processing and display module are powered；The lighting module provides for image-forming module
Illumination；The image-forming module is digital camera, is connect with data processing with display module, artificial for shooting fastener surface
Tag image；The data processing is connect with display module with image-forming module, for receiving the image data of image-forming module acquisition,
And image real time transfer is carried out, to determine whether fastener loosens, and shooting image and processing result are shown.
Preferably, the lighting module uses LED light source lighting.
Preferably, the data processing and display module are the embedded processing systems of included display screen.
Preferably, the handmarking of the fastener surface is made of fluorescent material.
Preferably, the lighting module emission wavelength range is 200-400nm.
Preferably, the image-forming module is black and white camera, and issues fluorescence with handmarking in the setting of black and white camera front end
The optical filter of identical wave band only shoots handmarking's point phosphor pattern to inhibit environment light.
Preferably, handmarking's pattern of the fastener surface is linear type lines, and the side of linear type lines is located at
Movable part surface, the other side of fastener are located at the fixation member surface of fastener, two sides connection and line orientations coincidence.
The utility model has the following beneficial effects:
1) the utility model is in fastener surface manufacturing artificial indicia patterns, when the movable part of fastener loosens, point
Not Wei Yu movable part, fixation member surface handmarking will appear change in shape, pass through image-forming module shoot fastener table
Dough figurine work indicia patterns, then in data processing and display module, according to set handmarking's shape priors, use
Image processing algorithm can determine that relative position variation whether occurs between movable part and fixation member；2) the utility model is adopted
It is marked with fluorescent material manufacturing artificial, bright fluorescence is generated under ultraviolet or blue light illumination, handmarking is made to be more easier to know
Not；3) the utility model uses linear type lines handmarking, when the lines for being located at movable part, fixation member surface are sent out
When raw dislocation, that is, it can determine that fastener loosens, it is simple and effective；4) with patent CN201210311363.8,
CN201510794214.5 is compared, and the utility model does not change the mechanical structure of existing fastener, passes without the additional distance that increases
Sensor only need to coat linear type fluorescent paint, the linear type line image of production in the nut that has fastened, bolt surface
Without powering as distance measuring sensor, there is construction is simple, remarkable advantage at low cost；5) the utility model has using spirit
Convenient advantage living, can be placed on guide rail can carry out inspection to the fastener of factory's pipeline, large scale equipment, be placed in aircraft
On, inspection is carried out to the fastener of Large-Scale Equipment, bridge, house equal-height position object.
Detailed description of the invention
Fig. 1 is utility model device composition figure
Fig. 2 is nut and screw tip linear type lines example 1
Fig. 3 is that nut and screw tip linear type lines loosen example 1
Fig. 4 is nut and screw tip linear type lines example 2
Fig. 5 is that nut and screw tip linear type lines loosen example 2
In figure, 1- nut, 2- screw rod, 3- linear type lines, 4- fastener, 5- supporting module, 6- power supply module, 7- imaging
Module, 8- lighting module, 9- data processing and display module.
Specific embodiment
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
It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment 1
As shown in Figure 1, utility model device is by the fastener (4) with handmarking, supporting module (5), power supply module
(6), image-forming module (7), lighting module (8) and data processing and display module (9) form.Wherein, with the fastening of handmarking
Part is made of nut 1, screw rod 2 and handmarking's pattern.Supporting module (5) for fix power supply module (6), image-forming module (7),
Lighting module (8) and data processing and display module (9).Power supply module (6) and image-forming module (7), lighting module (8) and data
Processing is connect with display module (9), for powering.Lighting module (8) is located at image-forming module (7) side, mentions for image-forming module (7)
For illumination.Image-forming module (7) is connect with data processing with display module (9).Image-forming module (7) is for shooting fastener surface
Handmarking's pattern.Fastener surface handmarking's pattern of image-forming module (7) shooting is transferred to data processing and display module
(9).Data processing and display module (9), by image processing algorithm, determine manually mark according to handmarking's pattern prior information
Whether note pattern occurs change in shape, and then for determining whether fastener loosens.
As shown in Fig. 2, nut (1) is screwed on screw rod (2), there is screw thread outside nut interior and screw rod, pass through screw thread, nut
It is fixed on screw rod.It is fixation member that nut, which is movable part, screw rod, is fixed in the fixed support such as machinery, bridge.In nut
And screw tip, it makes linear type line image (3), line image (3) passes completely through screw tip, not entirely through nut top
Portion.By image-forming module towards nut top, the image of linear type lines (3) is shot.When nut loosening, as shown in figure 3, nut
Relative position variation occurs with screw rod, linear type line image is fractured into both threads item: 3-1,3-2 are located at nut and spiral shell
At the top of bar.The direction lines 3-1,3-2 is not overlapped, and determines that fastener loosens with this.In data processing and display module (9), lead to
Image processing algorithm is crossed, lines 3-1,3-2 is extracted, the angle a between them is calculated, for measuring fastener aeration level.Folder
Angle a calculation method is: first extracting the skeleton of lines 3-1,3-2, then estimates the linear equation of lines 3-1,3-2, further according to two
The equation parameter of lines calculates angle a.
Embodiment 2
Difference from Example 1 is, as shown in figure 4, linear type line image 3 passes completely through nut top.When tight
When firmware loosens, lines 3 are fractured into 3-1,3-2,3-3, and wherein 3-1,3-3 are located at nut top, and 3-2 is located at screw tip.Meter
The angle a2 for calculating the angle a1 or 3-2 and 3-3 of 3-2 and 3-1, for measuring fastener aeration level.
Embodiment 3
Difference from Example 1 is that linear type line image is made of fluorescent material, and lighting module generates blue light
Light source, image-forming module are color camera, in extracting shooting image in data processing and display module when linear type lines, first root
Color segmentation extraction is carried out according to fluorescence color.
Embodiment 4
Difference from Example 3 is that image-forming module is monochrome cameras, in monochrome cameras front end, setting and fluorescence phase
The narrow band filter of co-wavelength range inhibits environment light.In shooting image, only linear type line image is bright,
Remaining region is light color or dark areas.In data processing and display module, Intensity threshold Separation extraction is carried out to gray level image
Linear type lines.
Above disclosed is only several preferred embodiments of the utility model, certainly cannot be practical to limit with this
Novel interest field, therefore equivalent variations made according to the claim of the utility model still belong to what the utility model was covered
Range.
Claims (7)
1. a kind of fastener loosens detection device, which is characterized in that the device by the fastener with handmarking, supporting module,
Power supply module, image-forming module, lighting module, data processing and display module form；The fastener of the band handmarking be
The movable part and fixation member surface manufacturing artificial indicia patterns of fastener；The movable part of the fastener refer to nut or
Bolt, the fixation member of the fastener refers to for the screw rod of attaching nut or the pedestal for connecting bolt；The support
Module is for installing and fixed power supply module, image-forming module, lighting module and data processing and display module；The power supply module
For the power supply of lighting module, image-forming module, data processing and display module；The lighting module provides illumination for image-forming module；Institute
Stating image-forming module is digital camera, is connect with data processing with display module, for shooting fastener surface handmarking figure
Picture；The data processing is connect with display module with image-forming module, for receiving the image data of image-forming module acquisition, and is carried out
Image real time transfer to determine whether fastener loosens, and shows shooting image and processing result.
2. a kind of fastener according to claim 1 loosens detection device, which is characterized in that the lighting module uses
LED light source lighting.
3. a kind of fastener according to claim 1 loosens detection device, which is characterized in that the data processing and display
Module is the embedded processing systems of included display screen.
4. a kind of fastener according to claim 1 loosens detection device, which is characterized in that the people of the fastener surface
Work label is made of fluorescent material.
5. a kind of fastener according to claim 4 loosens detection device, which is characterized in that the lighting module shines wave
Long range is 200-400nm.
6. a kind of fastener according to claim 5 loosens detection device, which is characterized in that the image-forming module is black and white
Camera, and in the optical filter of black and white camera front end setting wave band identical as handmarking's sending fluorescence, to inhibit environment light, only clap
Take the photograph handmarking's point phosphor pattern.
7. a kind of fastener according to claim 1 or 4 loosens detection device, which is characterized in that the fastener surface
Handmarking's pattern be linear type lines, the side of linear type lines is located at the movable part surface of fastener, the other side
In the fixation member surface of fastener, two sides connection and line orientations coincidence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820862876.0U CN208206469U (en) | 2018-06-05 | 2018-06-05 | A kind of fastener loosening detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820862876.0U CN208206469U (en) | 2018-06-05 | 2018-06-05 | A kind of fastener loosening detection device |
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| CN208206469U true CN208206469U (en) | 2018-12-07 |
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| CN201820862876.0U Active CN208206469U (en) | 2018-06-05 | 2018-06-05 | A kind of fastener loosening detection device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110009602A (en) * | 2019-03-08 | 2019-07-12 | 唐山百川智能机器股份有限公司 | Detection method, system storage medium and the computer equipment of fastener locking mark |
| CN110987277A (en) * | 2019-12-30 | 2020-04-10 | 三一重机有限公司 | Detection device |
| CN112945437A (en) * | 2021-01-29 | 2021-06-11 | 优势博研(北京)科技有限公司 | Bolt looseness detection device based on visual monitoring |
| CN113780464A (en) * | 2021-09-26 | 2021-12-10 | 唐山百川智能机器股份有限公司 | Method for detecting anti-loose identification of bogie fastener |
| 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 |
| US11889048B2 (en) | 2020-08-18 | 2024-01-30 | Sony Group Corporation | Electronic device and method for scanning and reconstructing deformable objects |
-
2018
- 2018-06-05 CN CN201820862876.0U patent/CN208206469U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110009602A (en) * | 2019-03-08 | 2019-07-12 | 唐山百川智能机器股份有限公司 | Detection method, system storage medium and the computer equipment of fastener locking mark |
| CN110009602B (en) * | 2019-03-08 | 2020-08-11 | 唐山百川智能机器股份有限公司 | Method for detecting whether fastener loosens |
| CN110987277A (en) * | 2019-12-30 | 2020-04-10 | 三一重机有限公司 | Detection device |
| CN110987277B (en) * | 2019-12-30 | 2021-12-17 | 三一重机有限公司 | Detection device |
| US11889048B2 (en) | 2020-08-18 | 2024-01-30 | Sony Group Corporation | Electronic device and method for scanning and reconstructing deformable objects |
| CN112945437A (en) * | 2021-01-29 | 2021-06-11 | 优势博研(北京)科技有限公司 | Bolt looseness detection device based on visual monitoring |
| 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 |
| CN113780464A (en) * | 2021-09-26 | 2021-12-10 | 唐山百川智能机器股份有限公司 | Method for detecting anti-loose identification of bogie fastener |
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