CN206234223U - Fastener - Google Patents
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- CN206234223U CN206234223U CN201621321139.7U CN201621321139U CN206234223U CN 206234223 U CN206234223 U CN 206234223U CN 201621321139 U CN201621321139 U CN 201621321139U CN 206234223 U CN206234223 U CN 206234223U
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- 239000013078 crystal Substances 0.000 claims description 28
- 239000000919 ceramic Substances 0.000 claims description 27
- 238000003860 storage Methods 0.000 claims description 9
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 21
- 230000000694 effects Effects 0.000 description 7
- 239000003292 glue Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000005483 Hooke's law Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model is related to a kind of fastener, including：Connection body, connection body is used cooperatively with connector to be tightened, and connection body includes relative first end and the second end, and first end includes first end face, and first end face is away from the second end；Piezoelectric sensing module, is arranged on the first end of connection body, and piezoelectric sensing module includes exposure, and exposure is exposed to first end face and is contacted with external environment condition.The fastener of the utility model embodiment can detect that reduce detection job step, detection speed is fast, detects high working efficiency, time saving and energy saving by the way that piezoelectric sensing module is directly connected with external equipment to the pretightning force for connecting body.
Description
Technical field
The utility model is related to fastening structure part technical field, more particularly to a kind of fastener.
Background technology
Bolt is one of most important part in mechanical structure, and in traditional industry field, machine components are generally only as knot
Component is present, and is the indispensable device for fixing many large scale equipments such as blower fan support, frame iron tower high.Due to a variety of causes, may lead
Bolt is caused to loosen, so that there is major accident in large scale equipment, therefore, bolt is periodically detected, for big
Type plant maintenance has very important meaning.
The stability of bolt, mainly ensures by the prestressing force inside bolt, when prestressing force is maintained in scope of design,
Bolt stabilization, will not loosen.When prestressing force is too small, bolt looseness, fastening effect failure causes structural failure.When pre-
Stress is excessive, beyond the allowable stress of material, bolt failure occurs, and fastening effect failure also results in structural failure.
Bolt prestressing force is produced between the bolt and connected compcnent under screw-down torque effect during twisting bolt
Along the prestressing force of bolt axis direction.For a specific bolt, the screw-down torque of its prestressed size and bolt,
The frictional force between frictional force, nut and connected compcnent between bolts and nuts is related.In the prior art, bolt is carried out pre-
, it is necessary to manually be polished the nut end face of bolt using instrument during stress mornitoring, remove the dirt of end face and ensure end
The roughness in face meets detection and requires.Polishing need of work spends longer time, pays more labour, detects working expenditure
Thing is laborious, and efficiency is low.
Utility model content
The utility model embodiment provides a kind of fastener, can directly connect with external equipment by by piezoelectric sensing module
Fetch and the pretightning force for connecting body detected, reduce detection job step, detection speed is fast, detects high working efficiency,
It is time saving and energy saving.
Regarding to the issue above, on the one hand a kind of fastener is proposed according to the utility model embodiment, including：Connection is originally
Body, connection body is used cooperatively with connector to be tightened, and connection body includes relative first end and the second end, first
End includes first end face, and first end face is away from the second end；Piezoelectric sensing module, is arranged on the first end of connection body,
Piezoelectric sensing module includes exposure, and exposure is exposed to first end face and is contacted with external environment condition.
According to the one side of the utility model embodiment, fastener also includes exciting circuit, exciting circuit and exposure
Coordinate, so that piezoelectric sensing module produces acoustical signal or receives the electric signal that piezoelectric sensing module is produced.
According to the one side of the utility model embodiment, the second end includes second end face, second end face and first end
Face is oppositely arranged, and exposure is parallel with second end face.
According to the one side of the utility model embodiment, piezoelectric sensing module is by way of gluing bonding and first end
Portion engages.
According to the one side of the utility model embodiment, fastener also includes magnetic piece, and magnetic piece is arranged on piezoelectricity biography
Between sense module and first end, piezoelectric sensing module is adsorbed with first end by magnetic piece and engaged.
According to the one side of the utility model embodiment, piezoelectric sensing module is integrally formed with first end.
According to the one side of the utility model embodiment, first end includes the groove being arranged in first end face, pressure
Electric sensing module is removably fitted into groove.
According to the one side of the utility model embodiment, information storage unit is provided with exposure.
According to the one side of the utility model embodiment, information storage unit includes two-dimentional code layer, three-dimensional code layer, bar shaped
One or more in code, IC chip and magnetic stripe.
According to the one side of the utility model embodiment, piezoelectric sensing module is piezoelectric ceramic piece or piezoelectric crystal plate.
According to the utility model embodiment provide fastener, its can by external equipment directly with piezoelectric sensing module
Exposure contact detect that reduce detection job step, detection speed is fast, detect work to the pretightning force for connecting body
Make efficiency high, it is time saving and energy saving.
Brief description of the drawings
Feature, advantage and the technique effect of the utility model exemplary embodiment described below with reference to the accompanying drawings.
Fig. 1 is the overall structure diagram of the fastener of the utility model embodiment.
Fig. 2 is that gluing installation of piezoelectric sensing module of the utility model embodiment fixes schematic diagram.
Fig. 3 is that the piezoelectric sensing module magnetic piece of the utility model embodiment installs fixed schematic diagram.
Fig. 4 is that the piezoelectric sensing module of the utility model embodiment inlays the fixed schematic diagram of installation.
Fig. 5 is that the piezoelectric sensing module of the utility model embodiment is provided with the structural representation of information memory cell.
Fig. 6 is that the fastener of the utility model embodiment treats Pre strained state schematic diagram.
Fig. 7 be the utility model embodiment fastener pretension after view.
Fig. 8 is that the fastener pretightning force detection data of the utility model embodiment represents intention.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not drawn according to actual ratio.
Description of symbols：
1st, fastener；
2nd, body is connected；21st, bolt；211st, nut；211a, end face；211b, groove；212nd, screw rod；212a, end face；
3rd, piezoelectric sensing module；31st, exposure；
4th, ultrasonic signal；
5th, exciting circuit；
6th, structure glue；
7th, magnetic piece；
8th, connected piece；
9th, information storage unit.
Specific embodiment
Implementation method of the present utility model is described in further detail with reference to the accompanying drawings and examples.Following examples
The detailed description and the accompanying drawings be used to exemplarily illustrate principle of the present utility model, but can not be used for limiting model of the present utility model
Enclose, i.e., the utility model is not limited to described embodiment.
As shown in Figure 1, Figure 7 shows, the fastener 1 of the utility model embodiment is used to at least two connected pieces 8 to connect solid
It is fixed to arrive together.The fastener 1 of the present embodiment can be to applying to meet desired pretightning force, to cause to be connected between connected piece 8
Mechanical coupling strength requirement is met between fitting 8, is not in during one's term of military service the situation of the state that is disconnected in connected piece 8.
The fastener 1 of the present embodiment by connect body 2 by connected piece 8 be fixedly connected or connection body 2 on install other aid in
Fixture come realize connection.After completing connection using the fastener 1 of the present embodiment, connection body 2 is primarily subjected to tension, in axle
To length change can occur on direction.The fastener 1 of the present embodiment is being connected with connected piece 8 and is using for a period of time
Afterwards, pretension directly can be carried out to connection body 2 using the piezoelectric sensing module 3 set on detecting instrument mating connection body 2
Power situation is detected, it is not necessary to do extra treatment work to connection body 2, and detection speed is fast, high working efficiency.
The connection body 2 of the fastener 1 of the utility model embodiment can be bolt 21, stud, screw or crab-bolt etc.
Structural member, is all that connection body 2 bears tension after these structural members are connected with connected piece 8.Therefore, as shown in figure 1, under
Face describes the technical solution of the utility model, but the embodiment using bolt 21 as embodiment not to guarantor of the present utility model
Shield scope forms limitation.
As shown in figure 1, the fastener 1 of the present embodiment includes bolt 21 and piezoelectric sensing module 3.Bolt 21 includes nut
211 and screw rod 212.The first end of the connection body 2 of the present embodiment is nut 211, and the second end is screw rod 212.First end
The first end face in portion is end face 211a of the nut 211 away from screw rod 212, and the second end face of the second end is screw rod 212 away from spiral shell
The end face 212a of cap 211.Piezoelectric sensing module 3 is arranged on the end face 211a of nut 211.Piezoelectric sensing module 3 is away from nut
The exposure 31 of 211 end face 211a is exposed to end face 211a and is contacted with external environment condition, is carried out directly with other equipment with facilitating
Contact.
As shown in Fig. 2 piezoelectric sensing module 3 can be by structure glue 6 with the connected mode of the end face 211a of nut 211
Gluing bonding.Structure glue 6 after solidification causes closed seamless gap between piezoelectric sensing module 3 and the end face 211a of nut 211.Knot
The cost taken by themselves of structure glue 6 is low, and can be bonded with nut 211 firmly by piezoelectric sensing module 3, both is not easily disconnected from connection shape
State, it is ensured that the production cost of fastener 1 is reduced while piezoelectric sensing module 3 is with 211 stable connection of nut.
As shown in figure 3, piezoelectric sensing module 3 can also be by magnetic with the connected mode of the end face 211a of nut 211
The absorption connection of piece 7.When nut 211 is magnetic material, magnetic piece 7 is set in piezoelectric sensing module 3, then by magnetic piece
7 magnetic force is directly connected to nut 211, but to ensure between the end face 211a of piezoelectric sensing module 3, magnetic piece 7 and nut 211
Contact surface it is seamless.When nut 211 is nonmagnetic substance, on the end face 211a of piezoelectric sensing module 3 and nut 211
Magnetic piece 7 is set, and piezoelectric sensing module 3 and nut 211 adsorb connection, piezoelectric sensing module 3, magnetic by two panels magnetic piece 7
Contact surface between piece 7 and the end face three of nut 211 is seamless.
As shown in figure 4, piezoelectric sensing module 3 can also be in spiral shell with the mode that is fixedly connected of the end face 211a of nut 211
Groove 211b is fabricated out on the end face 211a of cap 211, then piezoelectric sensing module 3 is removably fitted into groove 211b
In.The inwall of groove 211b forms spacing to piezoelectric sensing module 3, it is to avoid be embedded into the piezoelectric sensing module 3 in groove 211b
Come off away from groove 211b.After the insertion groove of piezoelectric sensing module 3 211b, the bottom of piezoelectric sensing module 3 and groove 211b
It is in close contact between portion seamless.In one embodiment, in the advance coated structure glue 6 in bottom of groove 211b, then by piezoelectricity
It is seamless to ensure to be fitted close between piezoelectric sensing module 3 and groove 211b in the insertion of sensing module 3 groove 211b.Coating
The mode of structure glue 6, it may not be necessary to which the bottom to groove 211b finishes, the roughness for reducing groove 211b bottoms will
Ask, effectively reduce processing and manufacturing cost.In another embodiment, piezoelectric sensing module 3 and nut 211 are integrally formed, it is ensured that
Piezoelectric sensing module 3 is closely connected seamless with nut 211, while piezoelectric sensing module 3 is connected more firmly, no with nut 211
Easily come off from nut 211.
As shown in figure 1, the piezoelectric sensing module 3 of the present embodiment is used to produce ultrasonic signal 4.The piezoelectricity of the present embodiment is passed
Sense module 3 can be piezoelectric ceramic piece or piezoelectric crystal plate.Piezoelectric ceramic piece or piezoelectric crystal plate can be converted the electrical signal to
Ultrasonic signal 4, or ultrasonic signal 4 is converted into electric signal.It is super being produced using piezoelectric ceramic piece or piezoelectric crystal plate
After acoustic signals 4, can be reflected when ultrasonic signal 4 is on the end face 212a for running into the end of screw rod 212.Piezoelectric ceramic piece or
Piezoelectric crystal plate is plane with the contact surface of nut 211.Exposure 31 is parallel with the contact surface.Piezoelectric ceramic piece or piezo-electric crystal
It is parallel to each other between the end face 212a of the end of the exposure 31 and screw rod 212 away from nut 211 of piece, to ensure that ultrasonic wave is believed
The major part of ultrasonic signal 4 that number 4 end face 212a in the end of screw rod 212 is reflected back can be by piezoelectric ceramic piece or piezo crystals
Body piece is received, it is to avoid the reflection direction of ultrasonic signal 4 shifts and causes energy loss.
It is to the principle that bolt 21 of the present embodiment with piezoelectric sensing module 3 carries out pretightning force detection：
As shown in fig. 6, when the bolt 21 is arranged on connected piece 8 but does not apply pretightning force, the original length of screw rod 212
It is L to spend0, the thickness of connected piece 8 is LK0.As shown in figure 8, when the installation top nut on the screw rod 212 of bolt 21 and tightening spiral shell
After mother to bolt 21 to apply pretightning force, it is elongated because screw rod 212 is subject to the effect of pretightning force F, now screw rod 212 is pre-
Tight length is changed into L1, the thickness of connected piece 8 is LK1(with LK0It is equal), following LK1、LK0It is referred to as LK.Screw rod 212 is stretched length
Degree L2Equal to L1And L0Difference.Meet Hooke's law, formula (2) can be derived by following formula (1)
L2=FLK/ES (1)
F=ESL2/LK (2)
Parameters in Formula implication：
F- pretightning forces；
E- Young's modulus；
S- stress sectional areas；
LKThe thickness of-connected piece 8；
L2The length change amount of-screw rod 212.
When be attached for connected piece 8 by the bolt 21 with piezoelectric ceramic piece or piezoelectric crystal plate using the present embodiment
When fixed, the pretension process of screw rod 212 and later stage are run by piezoelectric ceramic piece or the ultrasonic wave of piezoelectric crystal plate generation
The length change in stage is measured.Make the piezoelectric ceramic piece or piezo crystals on the end face 212a of screw rod 212 using external equipment
Body piece produces ultrasonic signal 4, ultrasonic signal 4 to launch towards the end face of screw rod 212 in screw rod 212, and ultrasonic wave runs into spiral shell
Can be by the end face reflection after the end face 212a of bar 212.Then using ultrasonic signal 4 be transmitted into screw rod 212 end face 212a and
The time of piezoelectric ceramic piece or piezoelectric crystal plate is reflected back through end face 212a to be measured come the length to screw rod 212, screw rod
212 length value is equal to the product of the spread speed of the total time and ultrasonic wave of ultrasonic propagation in screw rod 212.Fig. 8 illustrates
Property show the present embodiment the bolt 21 with piezoelectric ceramic piece or piezoelectric crystal plate pretightning force with the residing rotation of bolt 21
The stage of twisting or the variation tendency of operation phase and time.With reference to Fig. 8, transverse axis represents the run time of bolt 21, and the T0 times are spiral shell
Bolt 21 starts mount point, and T1, T2, T3, T4, T5, T6, T7 are pretightning force detection time point.T0、T1、T2、T3、T4、T5、T6、T7
Time interval length according to circumstances can voluntarily be adjusted by user.The longitudinal axis represents the pretightning force that the screw rod 212 of bolt 21 bears,
F0 be Theoretical Design pretightning force, design pretightning force can fluctuation range be set as ± 5%, certainly, this can fluctuation range by designer
Suitably adjusted according to machine operation.In Fig. 8, ID1001, ID1002, ID1003, ID1004 are different bolts 21
Numbering, the numbering has uniqueness, and the coding of each bolt 21 is different.Can be obtained from Fig. 8, use carrying for the present embodiment
When the bolt 21 of piezoelectric ceramic piece or piezoelectric crystal plate is detected, the control accuracy of the pretightning force of bolt 21 can be brought up to ±
5%.
The bolt 21 with piezoelectric ceramic piece or piezoelectric crystal plate of the present embodiment, using external equipment directly excitation piezoelectricity
Potsherd or piezoelectric crystal plate produce ultrasonic wave to detect the pretightning force of screw rod 212.Because ultrasonic wave will not be caused to bolt 21
Damage, piezoelectric ceramic piece or piezoelectric crystal plate cost taken by themselves are low, detection is directly carried out by piezoelectric ceramic piece or piezoelectric crystal plate
Work, it is no longer necessary to which the end face 211a to the nut 211 of bolt 21 is pre-processed, thus with piezoelectric ceramic piece or piezo crystals
The bolt 21 of body piece will not be damaged by ultrasonic wave, and holistic cost is low, and detection high working efficiency, and accuracy of detection is high.Pass through
Detection to the pretightning force of bolt 21, can interpolate that the health condition of bolt 21, so as to ensure the in-service period of bolt 21, not lose
Effect, improves the reliability using the equipment of the bolt 21.
As shown in figure 1, the fastener 1 of the present embodiment also includes exciting circuit 5.Exciting circuit 5 is directly and piezoelectric ceramic piece
Or piezoelectric crystal plate is connected.When needing the screw rod 212 to bolt 21 to carry out pretightning force detection, excitation electricity can be directly used
Road 5 applies electric signal to encourage piezoelectric ceramic piece or piezoelectric crystal plate to produce ultrasonic wave to believe to piezoelectric ceramic piece or piezoelectric crystal plate
Numbers 4, or, collect piezoelectric ceramic piece or piezoelectric crystal plate receives ultrasonic wave that the end face reflection of screw rod 212 returns and is converted
Into electric signal, piezoelectric ceramic piece or piezoelectric crystal plate are accessed into exciting circuit 5 without carrying out extra work, further improve detection
Operating efficiency.
As shown in figure 5, the exposure of the piezoelectric ceramic piece or piezoelectric crystal plate of the present embodiment away from the nut 211 of bolt 21
Information storage unit 9 is provided with 31.The information storage unit 9 of the present embodiment stores the information of each bolt 21.Each spiral shell
The information of bolt 21 is all independent unique, with identification.The information of each bolt 21 is stored in far-end server shape
Into database.User can be transferred by the information storage unit 9 on piezoelectric ceramic piece or piezoelectric crystal plate from database
(such as supplier, raw material batch, production time, checklist, the quality certification, purchaser, design are pre- to go out the information of each bolt 21
Clamp force or the original length of screw rod 212 etc.).The information storage unit 9 of the present embodiment include two-dimentional code layer, three-dimensional code layer, bar code,
IC chip and magnetic stripe one or more, user can be by relevant device (such as mobile phone, professional scanner or hand
Hold detector etc.) therefrom it is deployed into the information of the bolt 21, it is easy to operate.In addition, after detection work is completed, also may be used
Database is passed back to be updated by relevant device with by the data obtained after detection, so as to reduce using artificial system
The cumbersome physical works such as meter, record, arrangement, effectively reduce the labour intensity of operating personnel, improve the effect of detection work
Rate.
The connection body 2 of the fastener 1 of the utility model embodiment can also be the structures such as stud, screw or crab-bolt
Part.When these structural members are in Pre strained state, it has end face in external environment condition.Piezoelectric ceramic piece or piezo-electric crystal
Piece is installed on the end face exposed to external environment condition of these structural members, connected mode, occupation mode and detection mode with it is upper
State that the bolt 21 with piezoelectric ceramic piece or piezoelectric crystal plate is identical, this is no longer going to repeat them.
Although being described to the utility model by reference to preferred embodiment, model of the present utility model is not being departed from
In the case of enclosing, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, as long as not depositing
The every technical characteristic being previously mentioned in structural hazard, each embodiment can combine in any way.The utility model
It is not limited to specific embodiment disclosed herein, but all technical schemes including falling within the scope of the appended claims.
Claims (10)
1. a kind of fastener (1), it is characterised in that including：
Connection body (2), connection body (2) uses cooperatively with connector to be tightened, and connection body (2) is including phase
To first end and the second end, the first end include first end face, the first end face is away from the second end；
Piezoelectric sensing module (3), is arranged on the first end of connection body (2), piezoelectric sensing module (3) bag
Exposure (31) is included, the exposure (31) is exposed to the first end face and is contacted with external environment condition.
2. fastener (1) according to claim 1, it is characterised in that also including exciting circuit (5), the exciting circuit
(5) coordinate with the exposure (31), so that the piezoelectric sensing module (3) produces acoustical signal or receives the piezoelectric sensing mould
The electric signal that block (3) is produced.
3. fastener (1) according to claim 1, it is characterised in that the second end includes second end face, described the
Biend is oppositely arranged with the first end face, and the exposure (31) is parallel with the second end face.
4. fastener (1) according to claim 1, it is characterised in that the piezoelectric sensing module (3) is by gluing bonding
Mode engaged with the first end.
5. fastener (1) according to claim 1, it is characterised in that also including magnetic piece (7), the magnetic piece (7) sets
Put between the piezoelectric sensing module (3) and the first end, the piezoelectric sensing module (3) is by the magnetic piece
(7) engaged with first end absorption.
6. fastener (1) according to claim 1, it is characterised in that the piezoelectric sensing module (3) and the first end
Portion is integrally formed.
7. fastener (1) according to claim 1, it is characterised in that the first end includes being arranged on described first
Groove (211b) on end face, the piezoelectric sensing module (3) is removably fitted into the groove (211b).
8. fastener (1) according to any one of claim 1 to 7, it is characterised in that be provided with the exposure (31)
Information storage unit (9).
9. fastener (1) according to claim 8, it is characterised in that described information storage element (9) is including Quick Response Code
One or more in layer, three-dimensional code layer, bar code, IC chip and magnetic stripe.
10. fastener (1) according to claim 1, it is characterised in that the piezoelectric sensing module (3) is piezoelectric ceramics
Piece or piezoelectric crystal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621321139.7U CN206234223U (en) | 2016-12-02 | 2016-12-02 | Fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621321139.7U CN206234223U (en) | 2016-12-02 | 2016-12-02 | Fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206234223U true CN206234223U (en) | 2017-06-09 |
Family
ID=58978879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621321139.7U Active CN206234223U (en) | 2016-12-02 | 2016-12-02 | Fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206234223U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151947A (en) * | 2017-12-26 | 2018-06-12 | 北京理工大学 | The caliberating device and scaling method of a kind of pretightning force and elongation |
| CN108183626A (en) * | 2018-01-08 | 2018-06-19 | 中北大学 | Power generation screw based on magnetoelectricity-Piezoelectric anisotropy formula structure |
| CN108468697A (en) * | 2018-06-21 | 2018-08-31 | 电子科技大学 | A kind of intelligent bolt that can detect joint gap variation |
| CN109668672A (en) * | 2019-01-08 | 2019-04-23 | 中国大唐集团新能源科学技术研究院有限公司 | Ultrasonic bolt pre-tightens force measuring method |
| CN109781332A (en) * | 2019-01-08 | 2019-05-21 | 中国大唐集团新能源科学技术研究院有限公司 | Method based on axle power and elongation control bolt pretightening |
| CN109813485A (en) * | 2019-01-08 | 2019-05-28 | 中国大唐集团新能源科学技术研究院有限公司 | Ultrasonic bolt pretightning force remote supervision system |
| CN109883664A (en) * | 2019-01-08 | 2019-06-14 | 中国大唐集团新能源科学技术研究院有限公司 | Bolt for wind power generation real time monitoring and diagnostic system |
| CN111504542A (en) * | 2020-04-20 | 2020-08-07 | 中物院成都科学技术发展中心 | Fastener with stress sensing function and suitable for being used in high-temperature environment and film transduction sensing system |
| CN111504541A (en) * | 2020-04-20 | 2020-08-07 | 中物院成都科学技术发展中心 | Fastener with stress sensing function and suitable for being used in high-corrosion environment and thin film transduction sensing system |
| CN111853025A (en) * | 2019-04-29 | 2020-10-30 | 宁波欣阳伟业进出口有限公司 | Intelligent bolt |
-
2016
- 2016-12-02 CN CN201621321139.7U patent/CN206234223U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151947A (en) * | 2017-12-26 | 2018-06-12 | 北京理工大学 | The caliberating device and scaling method of a kind of pretightning force and elongation |
| CN108183626A (en) * | 2018-01-08 | 2018-06-19 | 中北大学 | Power generation screw based on magnetoelectricity-Piezoelectric anisotropy formula structure |
| CN108183626B (en) * | 2018-01-08 | 2019-04-30 | 中北大学 | Based on magnetoelectricity-Piezoelectric anisotropy formula structure power generation screw |
| CN108468697A (en) * | 2018-06-21 | 2018-08-31 | 电子科技大学 | A kind of intelligent bolt that can detect joint gap variation |
| CN109668672A (en) * | 2019-01-08 | 2019-04-23 | 中国大唐集团新能源科学技术研究院有限公司 | Ultrasonic bolt pre-tightens force measuring method |
| CN109781332A (en) * | 2019-01-08 | 2019-05-21 | 中国大唐集团新能源科学技术研究院有限公司 | Method based on axle power and elongation control bolt pretightening |
| CN109813485A (en) * | 2019-01-08 | 2019-05-28 | 中国大唐集团新能源科学技术研究院有限公司 | Ultrasonic bolt pretightning force remote supervision system |
| CN109883664A (en) * | 2019-01-08 | 2019-06-14 | 中国大唐集团新能源科学技术研究院有限公司 | Bolt for wind power generation real time monitoring and diagnostic system |
| CN111853025A (en) * | 2019-04-29 | 2020-10-30 | 宁波欣阳伟业进出口有限公司 | Intelligent bolt |
| CN111504542A (en) * | 2020-04-20 | 2020-08-07 | 中物院成都科学技术发展中心 | Fastener with stress sensing function and suitable for being used in high-temperature environment and film transduction sensing system |
| CN111504541A (en) * | 2020-04-20 | 2020-08-07 | 中物院成都科学技术发展中心 | Fastener with stress sensing function and suitable for being used in high-corrosion environment and thin film transduction sensing system |
| CN111504541B (en) * | 2020-04-20 | 2021-07-23 | 中物院成都科学技术发展中心 | Fastener with stress sensing function and suitable for being used in high-corrosion environment and thin film transduction sensing system |
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