CN209483540U - Low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device and its unit - Google Patents
Low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device and its unit Download PDFInfo
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- CN209483540U CN209483540U CN201822065566.9U CN201822065566U CN209483540U CN 209483540 U CN209483540 U CN 209483540U CN 201822065566 U CN201822065566 U CN 201822065566U CN 209483540 U CN209483540 U CN 209483540U
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- wind turbines
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- tightening state
- fixing bolt
- magnetic field
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Abstract
The utility model discloses a kind of low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device and its units, belong to Wind turbines field.Including field generator for magnetic, magnetic field sensor and control device；The field generator for magnetic is for being mounted on bolt to be measured or nut to be measured；Magnetic field sensor is for being mounted on nut to be measured or bolt to be measured, for acquiring the real-time displacement data of nut to be measured and bolt to be measured according to changes of magnetic field and displacement relevant information being transferred to control device；Control device includes data processing unit, handle and be compared with preset threshold value for the displacement relevant information according to acquisition judging fixing bolt tightening state.The displacement monitoring of bolt is fixed by magnetic field sensor for the utility model, can obtain Wind turbines fastening bolt correlation displacement data in real time；And judge whether Wind turbines need to carry out O&M according to correlation displacement data obtained, to improve the safety of Wind turbines, improve the intelligent maintenance of unit.
Description
Technical field
The utility model relates to Wind turbines fields, more particularly to a kind of fixing bolt of wind-driven generator different parts
Tightening state intelligent monitoring device and its unit more particularly to high-strength bolt tightening state intellectual monitoring.
Background technique
Currently, fixing bolt tightness and the tightening state monitoring of wind power generating set is substantially all in original state,
It can not in short-term or the tightening state of real-time monitoring bolt.And with Wind turbines Distribution Area, O&M cost, intelligentized want
The raising asked, generated energy and availability are required, the tightening state monitoring of Wind turbines fastening bolt it is just more and more necessary and
Urgently.
Wind turbines bolt fastening status monitoring at present by artificial crossed after typically fastening, and then passes through mark
The drift condition of line determines bolt fastening state, and is all to be checked whether the offset of markings in regular inspection.This kind monitoring
There is very big hysteresis quality in ways and means, can not scent a hidden danger and be handled in time, may be to wind power generating set
Operation brings hidden danger, in turn results in the damage of wind power generating set.
Utility model content
The purpose of the utility model is to provide a kind of tightening state of the fixing bolt of wind-driven generator different parts intelligence
Monitoring device and its Wind turbines have real-time using the monitoring method of this kind of monitoring device, can scent a hidden danger in time simultaneously
It is handled, reduction brings hidden danger and damage to the operation of wind power generating set.
To achieve the above objectives, the present invention adopts the following technical solutions:
On the one hand, the utility model provides a kind of low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device,
For monitoring the tightening state of bolt to be measured and nut to be measured engaged therewith, including field generator for magnetic, magnetic field sensor and
Control device；
The field generator for magnetic is for being mounted on bolt to be measured or nut to be measured, for generating magnetic field；
The magnetic field sensor is to be measured for being acquired according to changes of magnetic field for being mounted on nut to be measured or bolt to be measured
Displacement relevant information is simultaneously transferred to control device by the real-time displacement data of nut and bolt to be measured；
The control device includes data processing unit, and the data processing unit is used to be believed according to the displacement correlation of acquisition
Breath handle and be compared with preset threshold value judging fixing bolt tightening state, and the foundation as O&M alarm.
Further, the field generator for magnetic includes special-shaped permanent magnet.
Further, the control device further includes data storage cell, and the data storage cell is for temporally axis
Storage displacement relevant information.
Further, the control device further includes Date Conversion Unit, for by the analog electric signal received into
Row processing is converted to the digital quantity signal for data processing, and the analog electric signal derives from the position of the magnetic field sensor
Move the conversion of data.
It further, further include communication device, the communication device is used for magnetic field sensor and control device, control device
With the information exchange of Wind turbines master control system.
Further, the communication device includes Canopen communication module and TCP/IP communication module.
It further, further include power distribution unit, for being whole device for electricity.
Further, the power distribution unit includes distribution section and protective device, and the protective device is used for distribution section
Surge protection and communication device surge protection.
In another aspect, a kind of Wind turbines are provided, including the low wind speed Wind turbines fixing bolt tightening state intelligence
It can monitoring device.
Due to the adoption of the above technical scheme, the utility model at least has the following advantages:
The displacement monitoring of bolt is fixed by magnetic field sensor for the utility model, and it is tight can to obtain in real time Wind turbines
Fixing bolt correlation displacement data；And judge whether Wind turbines need to carry out O&M according to correlation displacement data obtained, from
And the safety of Wind turbines is improved, the intelligent maintenance of unit is improved, the performance of unit is improved.
Detailed description of the invention
Above-mentioned is only the general introduction of technical solutions of the utility model, in order to better understand the technology hand of the utility model
Section, below in conjunction with attached drawing, the utility model is described in further detail with specific embodiment.
Fig. 1 is the mounting structure of the low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device of the utility model
Schematic diagram；
Fig. 2 is the plan structure of the low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device of the utility model
Schematic diagram；
Fig. 3 is the work signal of the low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device of the utility model
Figure；
Fig. 4 is the communication device of the low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device of the utility model
Schematic diagram；
Fig. 5 is the realization frame of the low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device of the utility model
Figure.
Specific embodiment
The exemplary embodiment of the utility model is more fully described below with reference to accompanying drawings.Although showing this in attached drawing
The exemplary embodiment of utility model, it being understood, however, that may be realized in various forms the utility model without should be by here
The embodiment of elaboration is limited.It is to be able to thoroughly understand the utility model, and energy on the contrary, providing these embodiments
It is enough to be fully disclosed to those skilled in the art the scope of the utility model.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being used in the specification of the utility model
Wording " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or
Add other one or more features, integer, step, operation, element, component and/or their group.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term), there is meaning identical with the general understanding of those of ordinary skill in the utility model fields.Also
It should be understood that those terms such as defined in the general dictionary, it should be understood that have and the context of the prior art
In the consistent meaning of meaning, and unless otherwise will not be explained in an idealized or overly formal meaning by specific definitions.
The utility model provides a kind of embodiment of low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device,
As shown in Figures 1 to 5, for monitoring the tightening state of bolt 1 to be measured and nut to be measured 2 engaged therewith, including magnetic field generation
Device 3, magnetic field sensor 4 and control device；Field generator for magnetic 3 is used for being mounted on bolt 1 or nut to be measured 2 to be measured
In generation magnetic field；Magnetic field sensor 4 for being mounted on nut 2 or bolt to be measured 1 to be measured, for according to changes of magnetic field acquisition to
It surveys the real-time displacement data of nut 2 and bolt 1 to be measured and displacement relevant information is transferred to control device；Control device includes number
According to processing unit, data processing unit is used to be carried out according to the displacement relevant information of acquisition to handle and compared with preset threshold value
To judging fixing bolt tightening state, and the foundation as O&M alarm.
When the utility model is used, field generator for magnetic can be arranged in nut (or bolt) side, by magnetic field sensing
Device setting generates relative displacement, magnetic field sense in bolt (or nut) side, the displacement of bolt or nut and rotation status in magnetic field
It answers device to acquire the relative shift information of bolt, nut by monitoring changes of magnetic field, and relative shift information is transferred to control
Device processed, the data processing unit of control device carry out processing according to the displacement relevant information of acquisition and carry out with preset threshold value
Contrast judgement fixing bolt tightening state, thus the foundation as O&M alarm.Data processing unit during processing can be right
It is displaced relevant information and increases time shaft, to obtain the real-time status of Wind turbines tested bolt.
Further, field generator for magnetic 3 is mainly realized by special-shaped permanent magnet.
As an improvement control device further includes data storage cell, data storage cell is stored for temporally axis
It is displaced relevant information.
It is transmitted in general, relative displacement information can be converted to analog electric signal by magnetic field sensor 4, control dress
It sets after receiving the electric signal, then the analog electric signal received is carried out by processing by Date Conversion Unit and be converted to number
Signal is measured, carries out data processing for data processing unit, analog electric signal derives from the displacement data of magnetic field sensor 4
Conversion.
It further, further include communication device, communication device is used for magnetic field sensor and control device, control device and wind
The information exchange of motor group master control system.
Further, communication device includes Canopen communication module and TCP/IP communication module, mainly realization and master control
PLC and SCADA carries out information exchange.
It can also include power distribution unit in above-described embodiment, for being whole device for electricity and necessary protection, wherein wrapping
Include the surge protection of distribution section and the surge protection of communication device.
In another aspect, a kind of Wind turbines are provided, including the low wind speed Wind turbines fixing bolt tightening state intelligence
It can monitoring device.
The magnetic field sensor of the utility model be mainly acquire bolt real time position data, can with monitoring bolt be displaced and
Rotation status.Control device is mainly used to that the data of acquisition are handled and controlled, and communication device is mainly used to will be at data
Reason result is communicated to Wind turbines master control core and SCADA, and notifies that master control system prompt operation maintenance personnel is safeguarded.
When the utility model is used, can be accomplished by the following way:
1) magnetic field sensor acquires bolt relative shift, monitoring bolt displacement and rotation status, and displacement is converted
For analog electric signal, control device is then transmitted the signal to.The Date Conversion Unit of control device will collect first
Displacement signal handled, then carry out A/D conversion, collected displacement signal is converted into digital quantity according to transfer algorithm
Signal.
2) data converted are further processed by data processing unit, and the data after conversion are filtered place first
Then reason increases time shaft to data, to obtain Wind turbines tested bolt real-time status.
3) data that data processing unit will acquire are further processed, then will displacement relevant information and pre-stored wind
Expertise threshold value under motor group difference operating condition is compared and iteration.
4) according to compare and iteration as a result, to judging whether Wind turbines displacement screw exceeds predetermined safe range,
To judge whether that operation maintenance personnel is needed to be handled.
5) data storage cell will be displaced relevant information and store according to time tag.
6) communication control unit uses the communication control unit independently of Wind turbines, communication mode using Canopen and
TCP/IP double mode, to increase the reliability of communication device.Communication control unit carries out letter by Canopen communication and main control PLC
Breath interaction.It will compare simultaneously and iteration result be transmitted to SCADA, to notify related personnel to carry out formulation maintenance plan.
7) communication device also passes through communication progress clock correction, to guarantee the time tag and wind-powered electricity generation of displacement screw information
The time tag of unit control system is consistent.
8) power distribution unit is mainly that whole device provides power supply and distribution and necessary protection, including the surge of distribution section
The surge protection of protection and communication control unit.
The utility model realizes bolt fastening state by the variation of sensor surrounding magnetic field fixed on monitoring bolt
Inspection, can detect the tightness of high-strength bolt in real time, the relative displacement between real-time monitoring screw bolt and nut, thus
Determine whether bolt fastening degree changes, while pre- maintenance alarm may be implemented.
The tightening state of bolt can be monitored in real time in the utility model, and provides pre- maintenance alarm according to testing result.This
Utility model can be adapted for real time monitoring and periodic monitoring, while be suitable for other related placeies.The utility model
Technical solution does not need to carry out any processing to bolt, does not influence the structure of bolt, detection accuracy is higher, can be according to setting value
Carry out pre- maintenance alarm.
The utility model passes through the magnetic field sensor of the fastening bolt of Wind turbines, to obtain Wind turbines fastening bolt
Correlation displacement data.The utility model judges whether Wind turbines need to carry out O&M according to correlation displacement data obtained,
To improve the safety of Wind turbines, the intelligent maintenance of unit is improved, the performance of unit is improved.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
In addition, it will be appreciated by those of skill in the art that although some embodiments in this include institute in other embodiments
Including certain features rather than other feature, but the combination of the feature of different embodiment means to be in the utility model
Within the scope of and form different embodiments.For example, in the following claims, embodiment claimed is appointed
Meaning one of can in any combination mode come using.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (9)
1. a kind of low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device, which is characterized in that be measured for monitoring
The tightening state of bolt and nut to be measured engaged therewith, including field generator for magnetic, magnetic field sensor and control device；
The field generator for magnetic is for being mounted on bolt to be measured or nut to be measured, for generating magnetic field；
The magnetic field sensor is for being mounted on nut to be measured or bolt to be measured, for acquiring nut to be measured according to changes of magnetic field
Control device is transferred to the real-time displacement data of bolt to be measured and by displacement relevant information；
The control device includes data processing unit, the data processing unit be used for according to the displacement relevant information of acquisition into
Row, which is handled and is compared with preset threshold value, judges fixing bolt tightening state, and the foundation as O&M alarm.
2. low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device according to claim 1, feature exist
In the field generator for magnetic includes permanent magnet.
3. low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device according to claim 1, feature exist
In the control device further includes data storage cell, and the data storage cell is for the related letter of temporally axis storage displacement
Breath.
4. low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device according to claim 3, feature exist
In the control device further includes Date Conversion Unit, is converted to use for the analog electric signal received to be carried out processing
In the digital quantity signal of data processing, conversion of the analog electric signal from the displacement data of the magnetic field sensor.
5. low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device according to any one of claims 1 to 4,
It is characterized in that, further includes communication device, the communication device is used for magnetic field sensor and control device, control device and wind turbine
The information exchange of group master control system.
6. low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device according to claim 5, feature exist
In the communication device includes Canopen communication module and TCP/IP communication module.
7. low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device according to claim 5, feature exist
In further including power distribution unit, for for the standby electricity of whole device.
8. low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device according to claim 7, feature exist
In the power distribution unit includes distribution section and protective device, and the protective device is used for the surge protection of distribution section and leads to
Interrogate the surge protection of device.
9. a kind of Wind turbines, which is characterized in that solid including low wind speed Wind turbines according to any one of claims 1 to 8
Determine bolt fastening state intelligent monitoring device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822065566.9U CN209483540U (en) | 2018-12-10 | 2018-12-10 | Low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device and its unit |
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| CN201822065566.9U CN209483540U (en) | 2018-12-10 | 2018-12-10 | Low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device and its unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630366A (en) * | 2018-12-10 | 2019-04-16 | 国电联合动力技术有限公司 | Low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device and its method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630366A (en) * | 2018-12-10 | 2019-04-16 | 国电联合动力技术有限公司 | Low wind speed Wind turbines fixing bolt tightening state intelligent monitoring device and its method |
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