CN218545976U - Bolt load ultrasonic monitoring cloud platform system - Google Patents
Bolt load ultrasonic monitoring cloud platform system Download PDFInfo
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- CN218545976U CN218545976U CN202222331572.0U CN202222331572U CN218545976U CN 218545976 U CN218545976 U CN 218545976U CN 202222331572 U CN202222331572 U CN 202222331572U CN 218545976 U CN218545976 U CN 218545976U
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Abstract
The utility model discloses thing networking cloud platform on-line monitoring's technical field, concretely relates to bolt load ultrasonic monitoring cloud platform system, include the intelligent bolt of area piezoelectricity film, paste in the wireless ultrasonic module on intelligent bolt surface, constitute with wireless ultrasonic module communication connection's high in the clouds server and with high in the clouds server communication connection's mobile terminal. The utility model discloses combine the thing networking technology, realized the long-range on-line measuring of bolt load, can be used for online monitoring application scenes such as harbour jack-up machinery, marine wind power, helping hand intelligence fortune dimension. The bolt stress cloud platform monitoring scheme based on the internet of things technology is provided for the first time, and the remote wireless real-time load monitoring is realized for the bolts which are difficult to reach for measuring personnel and are difficult to perform offline detection. Adopt the design of the wireless supersound thing networking module of compact to make piezoelectric film, intelligent bolt and monitoring module integration, promoted the bolt measuring precision.
Description
Technical Field
The utility model discloses thing networking cloud platform on-line monitoring's technical field, concretely relates to bolt load ultrasonic monitoring cloud platform system.
Background
The bolt connecting structure is widely applied to large-scale industrial equipment such as aerospace, vehicles, hoisting machinery and the like. The pre-tightening force is the expression form of the axial load of the bolt. When the bolt bears environmental loads such as wind load, the bolt can be broken due to overlarge pre-tightening force; when the bolt and the nut are loosened, the bolt shows that the pretightening force is obviously reduced. Therefore, pretension measurement is one of the most important methods for bolt safety state evaluation. The existing bolt preload measuring method mostly adopts methods such as a strain gauge and the like, but the measuring load based on the strain gauge only can reflect the local position load of the adhered strain gauge.
An ultrasonic stress measurement method based on the acoustic elastic effect is a bolt load nondestructive measurement method initiated in recent years. The principle of the ultrasonic stress method is to record the flight time of the ultrasonic wave which is transmitted from the head of the bolt to the bottom of the bolt and then reflected, so that the measurement result reflects the integral pretightening force of the bolt. With the emergence of new technologies such as intelligent bolts based on piezoelectric films and the like, the precision of the ultrasonic stress measurement method is higher and higher. However, currently, the realization of bolt load measurement based on ultrasonic waves is mainly based on portable instruments, and for bolts working in extreme environments such as high altitude, ocean, nuclear power and the like, a high-precision bolt overall pretightening force in-situ online monitoring system is still lacked.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bolt load ultrasonic monitoring cloud platform system solves traditional ultrasonic wave stress measuring instrument and can't realize bolt pretightning force normal position on-line measuring's problem, realizes the high accuracy real-time measurement and the safety precaution of bolt load.
The utility model discloses the scheme that the realization purpose adopted is: the bolt load ultrasonic monitoring cloud platform system comprises an intelligent bolt with a piezoelectric film, a wireless ultrasonic module adhered to the surface of the intelligent bolt, a cloud server in communication connection with the wireless ultrasonic module, and a mobile terminal in communication connection with the cloud server.
Preferably, the transmitting interface of the wireless ultrasonic module is tightly connected with the piezoelectric film of the intelligent bolt.
Preferably, the wireless ultrasound module includes a central processing unit, a high voltage chip, a pre-amplification chip, a filtering chip, a digital-to-analog conversion chip, a wireless transmission chip and a power module.
Preferably, the emission voltage of the high-voltage chip is 100-200V.
Preferably, the bandwidth of the filter chip is 5-50 MHz.
Preferably, the wireless transmission chip is a 4G module or a Lora module.
The utility model provides a wireless supersound module adopts low-power consumption design module single live time to be greater than the periodic inspection of unit and the interval time of maintenance, reduces the maintenance cost of high-cost fortune dimension object such as marine wind power.
The utility model has the advantages of it is following and beneficial effect:
the utility model discloses combine internet of things, provide a bolt load ultrasonic monitoring cloud platform system, realized the long-range on-line measuring of bolt load, can be used for online monitoring application scenes such as harbour jack-up machinery, marine wind power, helping hand intelligence fortune dimension.
The utility model discloses provide for the first time bolt stress cloud platform monitoring scheme based on internet of things, to the difficult bolt that reachs and implement the off-line measuring of measurement personnel, realized a long-range wireless real-time monitoring of load of changing.
The utility model discloses a wireless supersound thing networking module design of compact to make piezoelectric film, intelligent bolt and monitoring module integration, avoid the measuring error that traditional probe line connection arouses, promoted the bolt measuring precision.
Drawings
FIG. 1 is a schematic structural view of a bolt load ultrasonic monitoring cloud platform system of the present invention;
fig. 2 is a schematic structural view of the wireless ultrasound transmitting module of the present invention;
FIG. 3 is a schematic view of the structure of ultrasonic waveform in the use process of the present invention;
fig. 4 is a schematic view of the history curve of the bolt load in the use process of the present invention.
In the figure, 1, an intelligent bolt; 2. a wireless ultrasound module; 21. a central processing unit; 22. a high voltage chip; 23. a pre-amplification chip; 24. a filter chip; 25. a digital-to-analog conversion chip; 26. a wireless transmission chip; 27. a power supply module; 3. a cloud server; 4. a mobile terminal.
Detailed Description
For better understanding of the present invention, the following examples are further illustrative of the present invention, but the present invention is not limited to the following examples.
As shown in fig. 1, a bolt load ultrasonic monitoring cloud platform system is composed of an intelligent bolt with a piezoelectric film, a wireless ultrasonic module for ultrasonic signal acquisition and transmission, a cloud server for data storage, processing and remote control, and a mobile terminal for load display.
In this embodiment, the wireless ultrasound module includes a central processing unit, a high-voltage chip, a pre-amplification chip, a filtering chip, a digital-to-analog conversion chip, a wireless transmission chip, and a voltage module, as shown in fig. 2.
In this embodiment, the cloud server can realize registration and addition of the monitoring nodes of the ultrasonic module.
In this embodiment, the mobile terminal can realize remote restart of the ultrasonic module through the cloud server.
In this embodiment, the piezoelectric film on the surface of the intelligent bolt is prepared by magnetron sputtering or the like, and is bonded to the surface of the bolt at an atomic level.
In this embodiment, the wireless ultrasound module adopts low-power design and large-capacity battery, ensures that the operating time is 3 months old.
In this embodiment, the emission voltage range of the high-voltage chip covers 100V to 200V.
In this embodiment, the bandwidth range of the filter chip covers 5MHz to 20MHz.
In this embodiment, the wireless transmission chip is a 4G module or a Lora module.
A load monitoring method based on a bolt load ultrasonic monitoring cloud platform system comprises the following steps:
s1, adhering a wireless ultrasonic module to the end part of a target intelligent bolt with a piezoelectric film, and ensuring that a transmitting interface of the wireless ultrasonic module is tightly connected with an electrode of the piezoelectric film of the intelligent bolt;
s2, remotely starting a wireless ultrasonic module by using a cloud server, transmitting and receiving ultrasonic data, and adjusting the gain number to enable the amplitude of a reflection echo wave at the bottom surface of the bolt to reach 80% of full scale, as shown in figure 3;
s3, setting a time interval for receiving and transmitting ultrasonic data of the wireless ultrasonic module according to actual detection requirements;
s4, intercepting the bottom echo part of the ultrasonic wave shape collected in the wireless ultrasonic module, and wirelessly transmitting the bottom echo part to a cloud server;
s5, measuring the flight time of the echo at the bottom surface of the bolt, and calculating a bolt load value by combining the acoustic elastic coefficient of the bolt material;
s6, wirelessly sending the current real-time waveform data of the bolt and the recorded historical load data set to a mobile terminal for display;
s7, displaying and checking real-time waveforms, current load values and historical load value change curves by using the mobile terminal, wherein the curves are shown in FIG. 4;
s8, when the load value exceeds a safety threshold value, carrying out safety alarm prompting;
s9, when the amplitude of the real-time waveform is reduced by 6dB, a prompt for checking the connection state of the wireless ultrasonic module is carried out;
and S10, when the electric quantity of the wireless ultrasonic module is lower than 20%, the prompt for checking the state of the power module is carried out.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood that the invention is not limited thereto, and that various modifications and changes can be made by those skilled in the art without departing from the principles of the invention.
Claims (6)
1. The utility model provides a bolt load ultrasonic monitoring cloud platform system which characterized in that: the intelligent bolt comprises an intelligent bolt with a piezoelectric film, a wireless ultrasonic module adhered to the surface of the intelligent bolt, a cloud server in communication connection with the wireless ultrasonic module, and a mobile terminal in communication connection with the cloud server.
2. The bolt load ultrasonic monitoring cloud platform system of claim 1, wherein: and the transmitting interface of the wireless ultrasonic module is tightly connected with the electrode of the piezoelectric film of the intelligent bolt.
3. The bolt load ultrasonic monitoring cloud platform system of claim 1, wherein: the wireless ultrasonic module comprises a central processing unit, a high-voltage chip, a pre-amplification chip, a filtering chip, a digital-to-analog conversion chip, a wireless transmission chip and a power supply module.
4. The bolt load ultrasonic monitoring cloud platform system of claim 3, wherein: the emission voltage of the high-voltage chip is 100-200V.
5. The bolt load ultrasonic monitoring cloud platform system of claim 3, wherein: the bandwidth of the filter chip is 5-50 MHz.
6. The bolt load ultrasonic monitoring cloud platform system of claim 3, wherein: the wireless transmission chip is a 4G module or a Lora module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222331572.0U CN218545976U (en) | 2022-08-31 | 2022-08-31 | Bolt load ultrasonic monitoring cloud platform system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222331572.0U CN218545976U (en) | 2022-08-31 | 2022-08-31 | Bolt load ultrasonic monitoring cloud platform system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218545976U true CN218545976U (en) | 2023-02-28 |
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| CN202222331572.0U Active CN218545976U (en) | 2022-08-31 | 2022-08-31 | Bolt load ultrasonic monitoring cloud platform system |
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| CN (1) | CN218545976U (en) |
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2022
- 2022-08-31 CN CN202222331572.0U patent/CN218545976U/en active Active
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