CN204610526U - A kind of intelligent bolt of monitoring with pretightening force and temperature rise - Google Patents
A kind of intelligent bolt of monitoring with pretightening force and temperature rise Download PDFInfo
- Publication number
- CN204610526U CN204610526U CN201520245613.1U CN201520245613U CN204610526U CN 204610526 U CN204610526 U CN 204610526U CN 201520245613 U CN201520245613 U CN 201520245613U CN 204610526 U CN204610526 U CN 204610526U
- Authority
- CN
- China
- Prior art keywords
- bolt
- hole
- step hole
- antenna
- small sircle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model discloses a kind of intelligent bolt of monitoring with pretightening force and temperature rise, comprise bolt body, foil gauge, fill binding glue, bolt body top center is provided with step hole, foil gauge is arranged in the small sircle hole of this step hole, and filling binding glue is filled in the small sircle hole of this step hole, it is characterized in that: in the small sircle hole of described step hole, be also provided with temperature transducer, and the diameter of this small sircle hole is less than 2mm, fill binding glue and there is good heat conduction function, circuit board is provided with in the macropore of step hole, its circuit board comprises signal condition, control, wireless module, bolt body top is provided with antenna, the whole opening part of the macropore of antenna cover step hole, antenna is connected with circuit board by antenna connector.The utility model relates generally to industrial field.
Description
Technical field
The utility model relates to industrial field, particularly relates to a kind of intelligent bolt of monitoring with pretightening force and temperature rise.
Background technique
The pretightening force along bolt direction of axis line that bolt pretightening is exactly bolt in stubborn bolt process under screw-down torque effect and produces between connected compcnent.For a specific bolt, the size of its pretightening force and the frictional force between the screw-down torque of bolt, bolts and nuts, frictional force between nut and connected compcnent are relevant.
Pretension can improve the fatigue strength of bolted reliability, anti-loose ability and bolt, strengthens the tightness and rigidity that connect.In fact, a large amount of tests proves with use experience: higher pretightening force is all useful to the reliability be connected and the life-span be connected, more necessary to there being the connection of seal request especially.Certainly, proverb is said right, " things turn into their opposites when they reach the extreme ", too high pretightening force, if control improper or accidentally transship, also often can cause the inefficacy connected.Therefore, accurately determine that the pretightening force of bolt is very important.
Adopt resistance strain gage to measure the method for stress, the size of the pretightening force of bolt can accurately be measured, to can be as accurate as kilogram.Especially the detection of the pretightening force of the bolt before large pressurized vessel air tightness test is more suitable for.
The present situation that bolt pretightening is measured:
Bolt pretightening sensor classification:
Bolt pretightening sensor common on the market is mainly divided into two classes at present, one class directly measures the pretightening force of bolt generation, one class is indirect inspection bolt pretightening, and indirect inspection can derive various type sensor, the main ring washer load cell introduced for bolt pretightening measurement here.
The first kind: dynamometry bolt/tools for bolts ' pretension force snesor
This be a kind of using bolt directly as the sensor of dynamometer element, the power acted on bolt measured in the most direct mode, structure is simple, measures accurately, is the first-selection of scientific research and mechanics monitoring.
Equations of The Second Kind: ring washer weighing sensor
Carried out the pressure at indirect inspection nut place by the packing ring sensor being increased in bolt place, thus obtain the pretightening force suffered by bolt, ring washer will have enough sizes to install induction installation, is also one of major way of current tools for bolts ' pretension Force meansurement.
Existing mode is wired mode substantially, uses inconvenience, and in addition for the monitoring of particular surroundings, the clamping bolt of such as high voltage environment must ensure the isolation accomplishing high low potential, and wired mode is unacceptable.In addition under vibration environment and electric terminal environment, the loosening meeting of bolt is along with heating in some cases, simple monitoring bolt pretightening force is not enough to the operating mode of reacting bolt, now pretightening force monitoring and temperature monitoring are combined, can the operating mode of combined reaction bolt, for fault pre-alarming and diagnosis provide foundation.
Model utility content
The utility model discloses a kind of intelligent bolt of monitoring with pretightening force and temperature rise, in order to solve the deficiencies in the prior art.
For solving the problem, technical solution of the present utility model is:
A kind of intelligent bolt of monitoring with pretightening force and temperature rise, comprise bolt body, foil gauge, fill binding glue, bolt body top center is provided with step hole, foil gauge is arranged in the small sircle hole of this step hole, and filling binding glue is filled in the small sircle hole of this step hole, also temperature transducer is provided with in the small sircle hole of described step hole, and the diameter of this small sircle hole is less than 2mm, fill binding glue and there is good heat conduction function, circuit board is provided with in the macropore of step hole, its circuit board comprises signal condition, control, wireless module, bolt body top is provided with antenna, the whole opening part of the macropore of antenna cover step hole, antenna is connected with circuit board by antenna connector.
Described bolt body is connected with locking nut.
The beneficial effects of the utility model are: by monitoring temperature and the pretightening force of institute's attached article simultaneously, by pretightening force monitoring and temperature monitoring are combined, can the operating mode of combined reaction bolt, and for fault pre-alarming and diagnosis provide foundation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is structural representation of the present utility model;
In figure: 1-bolt body, 2-locking nut, 3-foil gauge, 4-temperature transducer, 5-circuit board, 6-battery, 7-processing circuit, 8-antenna, 9-fills binding glue, 10-antenna connector, 11-step hole, 12-small sircle hole.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
See accompanying drawing 1-2, the utility model comprises bolt body 1, foil gauge 3, fill binding glue 9, bolt body 1 top center is provided with step hole 11, foil gauge 3 is arranged in the small sircle hole 12 of this step hole 11, and filling binding glue 9 is filled in the small sircle hole 12 of this step hole 11, temperature transducer 4 is also provided with in the small sircle hole 12 of described step hole 11, and the diameter of this small sircle hole 12 is less than 2mm, fill binding glue 9 and there is good heat conduction function, circuit board 5 is provided with in the macropore of step hole 11, its circuit board 5 comprises signal condition, control, wireless module, bolt body 1 top is provided with antenna 8, antenna 8 covers the whole opening part of the macropore of step hole 11, antenna 8 is connected with circuit board 5 by antenna connector 10.
Described bolt body 1 is connected with locking nut 2.
In actual applications, temperature transducer 4 is also provided with in the small sircle hole 12 of step hole 11, the diameter of this small sircle hole 12 is less than 2mm, when diameter is less than 2mm, prove through experiment, measured temperature and the error amount of pretightening force less, data referential is worth higher, and along with the increase of diameter, error amount also increases further, and filling binding glue 9 has good heat conduction function, circuit board 5 is provided with in the macropore of step hole 11, its circuit board 5 comprises signal condition, control, wireless module, bolt body 1 top is provided with antenna 8, antenna 8 covers the whole opening part of the macropore of step hole 11, antenna 8 is connected with circuit board 5 by antenna connector 10, therefore, intelligent bolt in this model utility, not only can the pretightening force of monitoring bolt, and can the temperature of simultaneously monitoring intelligent bolt, temperature rise situation is caused by bolt looseness by bolt pretightening and temperature integrated the judging whether of bolt.
Usually this intelligent bolt has two kinds of implementations, and one is active mode, as Fig. 1, and embedded strain gauge 3 and temperature transducer 4 in small sircle hole 12, add filling binding glue 9 to solidify, signaling line is drawn, and upper end module comprises, signal condition, controller, wireless signal transmitting module, battery 6, antenna 8 is formed.Foil gauge 3 and temperature transducer 4 export and are analogue signal, adaptability to changes 3 exports relevant to corresponding resistance with temperature, signal conditioning circuit amplifies signal, after analogue signal being converted into digital signal by the AD of controller afterwards, sent by wireless signal transmitting module, rear end-receiver is converted into corresponding bolt pretightening and bolt temperature after receiving, and causes temperature rise situation by bolt pretightening and temperature integrated the judging whether of bolt by bolt looseness.
The second way is passive mode, and as embedded strain gauge 3 in Fig. 2 small sircle hole 12 and temperature transducer 4, add filling binding glue 9 and solidify, signaling line is drawn, and upper end module comprises electric bridge, RFID chip, and antenna 8 is formed.Foil gauge 3 and temperature transducer 4 export and are analogue signal, adaptability to changes exports relevant to corresponding resistance with temperature, signal is changed into differential signal by signal conditioning circuit, input RFID chip afterwards, by the AD of RFID inside, analogue signal is converted into digital signal, regularly send wireless signal inquiry foil gauge 3 and temperature signal by card reader antenna, after be converted into corresponding bolt pretightening and bolt temperature, temperature rise situation is caused by bolt looseness by bolt pretightening and temperature integrated the judging whether of bolt, this mode joins the on-line monitoring that fixing reading device can be applied to bolt situation, tennis partner holds reading device and may be used for regular patrolling and examining, mode is flexible.
Above-mentioned embodiment is preferred embodiment of the present utility model; can not limit the utility model; the any of other does not deviate from the technical solution of the utility model and the substitute mode of the change made or other equivalence, is included within protection domain of the present utility model.
Claims (2)
1. an intelligent bolt of monitoring with pretightening force and temperature rise, comprise bolt body, foil gauge, fill binding glue, bolt body top center is provided with step hole, foil gauge is arranged in the small sircle hole of this step hole, and filling binding glue is filled in the small sircle hole of this step hole, it is characterized in that: in the small sircle hole of described step hole, be also provided with temperature transducer, and the diameter of this small sircle hole is less than 2mm, fill binding glue and there is good heat conduction function, circuit board is provided with in the macropore of step hole, its circuit board comprises signal condition, control, wireless module, bolt body top is provided with antenna, the whole opening part of the macropore of antenna cover step hole, antenna is connected with circuit board by antenna connector.
2. the intelligent bolt of band pretightening force according to claim 1 and temperature rise monitoring, is characterized in that: described bolt body is connected with locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520245613.1U CN204610526U (en) | 2015-04-21 | 2015-04-21 | A kind of intelligent bolt of monitoring with pretightening force and temperature rise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520245613.1U CN204610526U (en) | 2015-04-21 | 2015-04-21 | A kind of intelligent bolt of monitoring with pretightening force and temperature rise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204610526U true CN204610526U (en) | 2015-09-02 |
Family
ID=53963096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520245613.1U Active CN204610526U (en) | 2015-04-21 | 2015-04-21 | A kind of intelligent bolt of monitoring with pretightening force and temperature rise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204610526U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791360A (en) * | 2015-04-21 | 2015-07-22 | 杨志强 | Intelligent bolt with pretightening force and temperature rising monitoring |
| CN109333161A (en) * | 2018-09-13 | 2019-02-15 | 温州大学 | A kind of intelligent bolt monitoring system for machine tool main shaft transmission part fault detection |
| CN109563866A (en) * | 2016-08-08 | 2019-04-02 | 应变实验室有限公司 | Intelligent bolt and its application method |
| CN109642602A (en) * | 2016-08-16 | 2019-04-16 | 福伊特专利有限公司 | Attachment device is screwed with monitor |
-
2015
- 2015-04-21 CN CN201520245613.1U patent/CN204610526U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791360A (en) * | 2015-04-21 | 2015-07-22 | 杨志强 | Intelligent bolt with pretightening force and temperature rising monitoring |
| CN109563866A (en) * | 2016-08-08 | 2019-04-02 | 应变实验室有限公司 | Intelligent bolt and its application method |
| US11149777B2 (en) | 2016-08-08 | 2021-10-19 | Strain Labs Ab | Intelligent bolts and methods of their use |
| CN109642602A (en) * | 2016-08-16 | 2019-04-16 | 福伊特专利有限公司 | Attachment device is screwed with monitor |
| CN109333161A (en) * | 2018-09-13 | 2019-02-15 | 温州大学 | A kind of intelligent bolt monitoring system for machine tool main shaft transmission part fault detection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104791360A (en) | Intelligent bolt with pretightening force and temperature rising monitoring | |
| CN204610526U (en) | A kind of intelligent bolt of monitoring with pretightening force and temperature rise | |
| CN100480653C (en) | Large value piezoelectric quartz multi-component force sensor | |
| CN103592062B (en) | A kind of axial pretightening force snesor | |
| CA2948095C (en) | Solar battery wireless load cell | |
| CN205910269U (en) | Distribution transformer running state's monitoring devices | |
| CN202339393U (en) | Insulation detector of power battery system of electric vehicle | |
| CN103438968A (en) | Double-range electronic car scale | |
| CN101603867B (en) | Torque sensor integrated with collector ring group | |
| CN102607659B (en) | Method for fuel detection and conversion in vehicle standard state | |
| CN103101489A (en) | Method of detecting whether connecting wires of electric automobile are loose | |
| CN101324497A (en) | Flexible plate assembly axial fatigue test method | |
| CN203704971U (en) | A sensor system used for engineering mechanical failure detection | |
| CN205384108U (en) | Measure axial tension's resistance strain force sensor | |
| CN203241111U (en) | Vehicle oil tank oil level detection device | |
| CN101975631A (en) | Integrated five-dimensional micro-force/torque sensor | |
| CN202382825U (en) | Stainless steel column type weighing sensor assembly | |
| CN105300575A (en) | Smart material sensor for monitoring bituminous pavement crushing stress, and manufacture and application methods | |
| CN203418922U (en) | Hub bearing assembly with clearance monitoring function | |
| CN206365585U (en) | A kind of luggage hand handle with function of weighing | |
| CN201163227Y (en) | Wireless indicator diagram data instrument | |
| CN203705108U (en) | Non-contact screw-detecting device | |
| CN1952626A (en) | Vehicular weighing digital measurer | |
| CN206470007U (en) | A kind of multidirectional force snesor | |
| CN210638831U (en) | Pressure sensor gasket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 519000, Guangdong Zhuhai District, Xiangzhou Province, Tang Wan Wan, Tsinghua Science Park Venture Capital Co., Ltd. dormitory Patentee after: Yang Zhiqiang Address before: 528000 No. nine, No. 8, science and technology zone, Xiangzhou hi tech Zone, Guangdong, Foshan Patentee before: Yang Zhiqiang |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170510 Address after: 519000 No. 8, No. 9 Road, hi tech Zone, Guangdong, Zhuhai Patentee after: Yado Monitoring Technology Co., Ltd. Address before: 519000, Guangdong Zhuhai District, Xiangzhou Province, Tang Wan Wan, Tsinghua Science Park Venture Capital Co., Ltd. dormitory Patentee before: Yang Zhiqiang |