CN110231158A - A kind of steel tower bolt looseness monitoring device - Google Patents
A kind of steel tower bolt looseness monitoring device Download PDFInfo
- Publication number
- CN110231158A CN110231158A CN201910601722.5A CN201910601722A CN110231158A CN 110231158 A CN110231158 A CN 110231158A CN 201910601722 A CN201910601722 A CN 201910601722A CN 110231158 A CN110231158 A CN 110231158A
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- groups
- supporting plate
- nut
- monitoring device
- signal
- Prior art date
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Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 27
- 239000010959 steel Substances 0.000 title claims abstract description 27
- 238000012806 monitoring device Methods 0.000 title claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 238000004804 winding Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 230000002940 repellent Effects 0.000 claims description 3
- 239000005871 repellent Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000005770 birds nest Nutrition 0.000 description 1
- 244000240635 birds nest Species 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 235000005765 wild carrot Nutrition 0.000 description 1
Classifications
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- 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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
- F16B39/26—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object with spring washers fastened to the nut or bolt-head
-
- 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
- G01B21/22—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 angles or tapers; for testing the alignment of axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a kind of steel tower bolt looseness monitoring devices of machinery monitoring engineering device technique field, including the double nut bolt assembly being fixedly connected on component, two groups of bayonet units and angular transducer, locking spring washer is provided between two groups of nuts of double nut bolt assembly, two groups of bayonet units are detachably secured to the nut outer wall of double nut bolt assembly respectively, the outer wall level of two groups of bayonet units is welded with supporting plate, pass through setting bayonet unit and supporting plate, it will be drawn on the outside of two groups of nuts using high duty metal filament, when bolt looseness, nut can generate displacement, and then it pulls out high duty metal filament and angular transducer work is driven to generate signal, recycle cpu controller and signal Wireless Transmitter that angle signal is transmitted to intelligent terminal, whether changed using angle, determine whether bolt and nut loosens, the device Easy to use, accuracy is high, is suitable for a variety of bolt and nut junctions.
Description
Technical field
The present invention relates to machinery monitoring engineering device technique field, specially a kind of steel tower bolt looseness monitoring device.
Background technique
Steel tower is generally existing in real life comprising various communications towers, microwave tower, process tower, lightning tower, electric power
Tower, television tower, Guywire tower, steel tube tower, light pole, single-pipe tower, beautification tower, artificial tree, integral quick-mounting base station, sightseeing tower, survey
The series of products such as wind tower.Steel tower is in open air, due to being exposed in the climatic environment of various complexity for a long time, the spiral shell of rigid tower
Bolt can generate corrosion, simultaneously because steel tower is higher, the small shaking that wind tower body generates, the two factors can make bolt generate pine
It is dynamic, and then the integrality of steel tower is destroyed, work is influenced, the risk collapsed is existed simultaneously, people's life security is endangered, causes simultaneously
Property loss.Collapse of iron tower in order to prevent is often being bolted place and bolt surface anticorrosion with painting paint at present, is slowing down corrosion, but
It is the destruction due to anti-corrosion paint layer during installation and handling, often effect is poor, therefore needs to design a kind of monitoring device, when
It carves to understand and is bolted situation, accomplish the early maintenance of early discovery, avoid loosening, be based on this, the present invention devises a kind of steel tower bolt
Monitoring device is loosened, to solve the above problems.
Summary of the invention
It is an object of the invention to a kind of steel tower bolt looseness monitoring device, with solve it is mentioned above in the background art urgently
A kind of monitoring device need to be designed to understand the problem of being bolted situation.
To achieve the above object, the invention provides the following technical scheme: a kind of steel tower bolt looseness monitoring device, including it is solid
Surely double nut bolt assembly, two groups of bayonet units and the angular transducer being connected on component, the double nut bolt assembly
Locking spring washer is provided between two groups of nuts, bayonet unit described in two groups is detachably secured to double nut bolt assembly respectively
Nut outer wall, the outer wall level of bayonet unit described in two groups is welded with supporting plate, leads between the apparent surface of supporting plate described in two groups
It crosses screw and flange is fixedly connected with freedom telescopic tube, the surface of supporting plate described in lower part is run through by through-hole is plugged with threaded post,
And threaded post is coaxially distributed with freedom telescopic tube, is led between the lower surface of supporting plate described in the outer wall lower part of the threaded post and lower part
Stop nut connection is crossed, the upper surface of supporting plate described in top is fixed with card cover by screw, and the upper surface of supporting plate described in top is solid
Surely it is connected with angular transducer and support plate, is oppositely arranged before and after the support plate and angular transducer, the table of the support plate
Face is rotatably connected to winding up roller by bearing and mandrel, and the core back-end of winding up roller and angular transducer shaft are connected by shaft coupling
It connects, the outer wall of the winding up roller, which is fastened, high duty metal filament, and high duty metal filament passes through through-hole through top
The supporting plate and freedom telescopic tube and threaded post upper end are welded；
The bayonet unit include coat anti-corrosion paint layer hollow six ribs plate, three groups of clamping screws, two groups of pressing plates and steel wire, three groups
The clamping screw uniformly runs through on the outer wall for being screwed onto hollow six ribs plate, and pressing plate described in three groups is rotatably connected on three by bearing
The inner end of the group clamping screw, the steel wire head and the tail connect and on the outer walls of clamping screw described in being wrapped in three groups, the angle
Degree sensor signal is connected with A/D converter, and the A/D converter signal is connected with cpu controller, the cpu controller letter
It number is connected with signal Wireless Transmitter, the cpu controller is electrically connected with power module, and the signal Wireless Transmitter signal connects
It is connected to intelligent terminal.
Further, the through-hole longitudinal section of supporting plate described in lower part is in isosceles trapezoid.
Further, the top of the card cover is fixedly connected with insulation bird repellent thorn.
Further, 502 glue are filled on the outside of the stop nut and the following table face contact gap of supporting plate described in lower part.
Further, the power module is powered using rechargeable lithium battery or micro solar battery panel assembly.
Further, the intelligent terminal is the smart phone or tablet computer for being equipped with signal conversion module.
Compared with prior art, the beneficial effects of the present invention are: the present invention is by setting bayonet unit and supporting plate, by two groups
It is drawn on the outside of nut using high duty metal filament, when bolt looseness, nut can generate displacement, and then keep high duty metal thin
Line pulls out and angular transducer work is driven to generate signal, recycles cpu controller and signal Wireless Transmitter by angle signal
It is transmitted to intelligent terminal, whether is changed using angle, determines whether bolt and nut loosens, the device is easy to use, and accuracy is high,
Suitable for a variety of bolt and nut junctions.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is schematic structural view of the invention；
Fig. 2 is bayonet unit structural schematic diagram in Fig. 1；
Fig. 3 is present system schematic diagram.
In attached drawing, parts list represented by the reference numerals are as follows:
1- double nut bolt assembly, 2- bayonet unit, 3- supporting plate, 4- card cover, 5- angular transducer, 6- support plate, 7- winding up roller, 8-
High duty metal filament, 9- freedom telescopic tube, 10- threaded post, 11- stop nut, 12-A/D converter, 13-CPU controller,
14- signal Wireless Transmitter, 15- power module, 16- intelligent terminal, the hollow six ribs plate of 20-, 21- clamping screw, 22- pressing plate,
23- steel wire.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of steel tower bolt looseness monitoring device, including fixation
1, two group of bayonet unit 2 of double nut bolt assembly and the angular transducer 5 being connected on component, the two of double nut bolt assembly 1
It is provided with locking spring washer between group nut, two groups of bayonet units 2 are detachably secured to the spiral shell of double nut bolt assembly 1 respectively
Female outer wall, the outer wall level of two groups of bayonet units 2 are welded with supporting plate 3, pass through screw and method between the apparent surface of two groups of supporting plates 3
Orchid is fixedly connected with freedom telescopic tube 9, and the surface of lower pallet 3 is run through by through-hole is plugged with threaded post 10, and threaded post 10
With the coaxial distribution of freedom telescopic tube 9, freedom telescopic tube 9 protects high duty metal filament 8, prevents wind-force from making its shaking, influence to supervise
Effect is surveyed, is connected between the outer wall lower part of threaded post 10 and the lower surface of lower pallet 3 by stop nut 11, upper pallet 3
Upper surface by screw be fixed with card cover 4, the upper surface of upper pallet 3 is fixedly connected with angular transducer 5 and support plate 6,
It being oppositely arranged before and after support plate 6 and angular transducer 5, the surface of support plate 6 is rotatably connected to winding up roller 7 by bearing and mandrel,
And the core back-end of winding up roller 7 is connect with 5 shaft of angular transducer by shaft coupling, the outer wall of winding up roller 7 is fastened and has high intensity
Metal fine 8, and high duty metal filament 8 passes through through-hole through upper pallet 3 and freedom telescopic tube 9 and 10 upper end of threaded post
Welding；
Bayonet unit 2 includes 20, three groups of hollow six ribs plate 21, two groups of clamping screw pressing plate 22 and the steel wire of coating anti-corrosion paint layer
23, uniformly through being screwed on the outer wall of hollow six ribs plate 20, three groups of pressing plates 22 are rotated by bearing to be connected three groups of clamping screws 21
It connects in the inner end of three groups of clamping screws 21, steel wire 23 is connected from beginning to end and is wrapped on the outer wall of three groups of clamping screws 21, winds steel
Silk 23 can prevent clamping screw 21 from loosening, and 5 signal of angular transducer is connected with A/D converter 12, and 12 signal of A/D converter connects
It is connected to cpu controller 13,13 signal of cpu controller is connected with signal Wireless Transmitter 14, and cpu controller 13 is electrically connected with power supply
Module 15,14 signal of signal Wireless Transmitter are connected with intelligent terminal 16.
Wherein, grafting threaded post 10 is convenient in isosceles trapezoid in the through-hole longitudinal section of lower pallet 3.
The top of card cover 4 is fixedly connected with insulation bird repellent thorn, prevents birds nest, influences to safeguard.
It is filled with 502 glue on the outside of the following table face contact gap of stop nut 11 and lower pallet 3, is bonded using glue solid
It is fixed, it prevents from loosening, while can also quickly remove using spray gun heating.
Power module 15 is powered using rechargeable lithium battery or micro solar battery panel assembly, and lithium battery passes through transformation mould
Block is connect with cpu controller 13, and micro solar battery panel assembly inlays sealing and is fixed on 4 upper surfaces of card cover.
Intelligent terminal 16 is the smart phone or tablet computer for being equipped with signal conversion module, is monitored convenient for the moment.
One concrete application of the present embodiment are as follows: by the way that in 9 upper and lower side welded flange of freedom telescopic tube, benefit is screwed
In 3 bottom of upper pallet, then clamping screw 21 is adjusted, fix it as described in Figure 1, pull out high duty metal filament 8 and welded
Threaded post 10 is passed through the supporting plate 3 of lower part and is locked using stop nut 11, by 9 lower weld of freedom telescopic tube by threaded post 10
Flange connected by 3 upper surface of supporting plate of screw and lower part, the angular readings of record intelligent terminal 16 at this time work as bolt looseness
When, nut can generate displacement, and then pull out high duty metal filament 8 and the work of angular transducer 5 is driven to generate signal, then benefit
Angle signal is transmitted to intelligent terminal 16 with cpu controller 13 and signal Wireless Transmitter 14.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (6)
1. a kind of steel tower bolt looseness monitoring device, including double nut bolt assembly (1), the two groups of cards being fixedly connected on component
Buckle device (2) and angular transducer (5), it is characterised in that: be provided between two groups of nuts of the double nut bolt assembly (1)
Locking spring washer, bayonet unit described in two groups (2) are detachably secured to the nut outer wall of double nut bolt assembly (1) respectively,
The outer wall level of bayonet unit described in two groups (2) is welded with supporting plate (3), is passed through between the apparent surface of supporting plate described in two groups (3)
Screw and flange are fixedly connected with freedom telescopic tube (9), and the surface of supporting plate (3) described in lower part is run through by through-hole is plugged with screw thread
Described in column (10), and threaded post (10) and the coaxial distribution of freedom telescopic tube (9), the outer wall lower part of the threaded post (10) and lower part
It is connected between the lower surface of supporting plate (3) by stop nut (11), the upper surface of supporting plate (3) described in top is fixed with by screw
Card covers (4), and the upper surface of supporting plate (3) described in top is fixedly connected with angular transducer (5) and support plate (6), the support plate
(6) and before and after angular transducer (5) it is oppositely arranged, the surface of the support plate (6) is rotatably connected to volume by bearing and mandrel
Roller (7), and the core back-end of winding up roller (7) is connect with angular transducer (5) shaft by shaft coupling, the outer wall of the winding up roller (7)
Being fastened has high duty metal filament (8), and high duty metal filament (8) passes through through-hole through supporting plate described in top (3)
It is welded with freedom telescopic tube (9) and threaded post (10) upper end；
The bayonet unit (2) includes hollow six ribs plate (20), the three groups of clamping screws (21), two groups of pressing plates for coating anti-corrosion paint layer
(22) and steel wire (23), clamping screw described in three groups (21) is uniformly through being screwed on the outer wall of hollow six ribs plate (20), and three groups
The pressing plate (22) by bearing be rotatably connected on three groups described in clamping screw (21) inner end, the steel wire (23) head and the tail connect
And on the outer wall of clamping screw described in being wrapped in three groups (21), angular transducer (5) signal is connected with A/D converter
(12), A/D converter (12) signal is connected with cpu controller (13), and cpu controller (13) signal is connected with signal
Wireless Transmitter (14), the cpu controller (13) are electrically connected with power module (15), signal Wireless Transmitter (14) letter
Number it is connected with intelligent terminal (16).
2. a kind of steel tower bolt looseness monitoring device according to claim 1, it is characterised in that: supporting plate described in lower part (3)
Through-hole longitudinal section in fall isosceles trapezoid.
3. a kind of steel tower bolt looseness monitoring device according to claim 1, it is characterised in that: the top of the card cover (4)
Portion is fixedly connected with insulation bird repellent thorn.
4. a kind of steel tower bolt looseness monitoring device according to claim 1, it is characterised in that: the stop nut (11)
502 glue are filled with the following table face contact gap outside of supporting plate described in lower part (3).
5. a kind of steel tower bolt looseness monitoring device according to claim 1, it is characterised in that: the power module (15)
It is powered using rechargeable lithium battery or micro solar battery panel assembly.
6. a kind of steel tower bolt looseness monitoring device according to claim 1, it is characterised in that: the intelligent terminal (16)
For the smart phone or tablet computer for being equipped with signal conversion module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910601722.5A CN110231158B (en) | 2019-07-05 | 2019-07-05 | Iron tower bolt looseness monitoring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910601722.5A CN110231158B (en) | 2019-07-05 | 2019-07-05 | Iron tower bolt looseness monitoring devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110231158A true CN110231158A (en) | 2019-09-13 |
| CN110231158B CN110231158B (en) | 2020-09-25 |
Family
ID=67856781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910601722.5A Expired - Fee Related CN110231158B (en) | 2019-07-05 | 2019-07-05 | Iron tower bolt looseness monitoring devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110231158B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN112097706A (en) * | 2020-08-24 | 2020-12-18 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | Wind power tower cylinder flange bolt looseness real-time monitoring system and early warning method |
| CN112478196A (en) * | 2020-11-24 | 2021-03-12 | 北京天创凯睿科技有限公司 | Airplane bolt fastening and detecting method |
| CN112710464A (en) * | 2020-12-31 | 2021-04-27 | 淮阴工学院 | Bolt looseness inspection device for tower-shaped steel structure building body |
| CN112734716A (en) * | 2020-12-31 | 2021-04-30 | 上海电气集团股份有限公司 | Automatic bolt detection method and device |
| CN113092098A (en) * | 2021-04-23 | 2021-07-09 | 大连银贝信息技术有限公司 | Bolt looseness detection device adaptive to bolts with different lengths |
| CN113790884A (en) * | 2021-09-28 | 2021-12-14 | 华能乌拉特中旗新能源发电有限公司 | Monitoring system for flange connecting bolt state |
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| CN112710464B (en) * | 2020-12-31 | 2022-07-15 | 淮阴工学院 | Bolt looseness inspection device for tower-shaped steel structure building body |
| CN112710464A (en) * | 2020-12-31 | 2021-04-27 | 淮阴工学院 | Bolt looseness inspection device for tower-shaped steel structure building body |
| CN112734716A (en) * | 2020-12-31 | 2021-04-30 | 上海电气集团股份有限公司 | Automatic bolt detection method and device |
| CN113092098A (en) * | 2021-04-23 | 2021-07-09 | 大连银贝信息技术有限公司 | Bolt looseness detection device adaptive to bolts with different lengths |
| CN113790884A (en) * | 2021-09-28 | 2021-12-14 | 华能乌拉特中旗新能源发电有限公司 | Monitoring system for flange connecting bolt state |
| CN114441154A (en) * | 2022-01-11 | 2022-05-06 | 昆山市交通工程发展中心 | Bolt tightness monitoring device |
| CN114838651A (en) * | 2022-04-02 | 2022-08-02 | 北京理工大学 | Bolt looseness monitoring device based on friction nanometer generator principle |
| CN115290481A (en) * | 2022-08-05 | 2022-11-04 | 西南交通大学 | Dental implant thread corrosion fatigue test device and test method thereof |
| CN115290481B (en) * | 2022-08-05 | 2024-02-02 | 西南交通大学 | Dental implant thread corrosion fatigue test device and test method thereof |
| CN117804749A (en) * | 2023-04-21 | 2024-04-02 | 南京中科智慧应急研究院有限公司 | Micro-vibration monitoring system for bolts |
| CN117804749B (en) * | 2023-04-21 | 2024-05-31 | 南京中科智慧应急研究院有限公司 | Micro-vibration monitoring system for bolts |
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