CN208872518U - A kind of planetary wheel of wind turbine gearbox fault detection mechanism - Google Patents
A kind of planetary wheel of wind turbine gearbox fault detection mechanism Download PDFInfo
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- CN208872518U CN208872518U CN201821840785.3U CN201821840785U CN208872518U CN 208872518 U CN208872518 U CN 208872518U CN 201821840785 U CN201821840785 U CN 201821840785U CN 208872518 U CN208872518 U CN 208872518U
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Abstract
The utility model discloses a kind of planetary wheel of wind turbine gearbox fault detection mechanisms, including foil gauge group and data collector connected to it.Foil gauge group includes multiple foil gauges, it is separately positioned on the tooth socket inner wall of the gear ring and/or sun gear that are meshed with planetary gear, the multiple foil gauges being arranged on gear ring tooth socket inner wall pass through data line respectively and connect with data collector, and the multiple foil gauges being arranged on sun gear tooth socket inner wall pass through radio transmitting device respectively and connect with data collector；Data collector is used to receive the real-time strain data of multiple foil gauges.The utility model is by increasing multiple foil gauges in gear-box gear Meshing Pair, and monitor the strain regime of planetary gear train gear Meshing Pair in real time by data collector, it is prejudged for the subsequent fault type to the planetary wheel of wind turbine gearbox and abort situation, strong data are provided to support, for improving the safety and reliability of blower, the maintenance cost and failure cost of blower are reduced.
Description
Technical field
The utility model relates to Wind turbines fault detection technique fields, more particularly to a kind of planetary wheel of wind turbine gearbox
Fault detection mechanism.
Background technique
Planetary gear train is wind turbine gearbox chief component, once breaking down, entire gear-box requires to open and inspect very
To replacement.The current planetary gear train structure overwhelming majority is all using 2K-H train.The planetary gear had both revolved or rotation, so row
The engagement of star-wheel is particularly important, be easy to cause planetary gear and the dry friction of bearing fit face, generates gluing, pulls iso-stress centrality
The destruction of matter causes planetary gear train initial failure, eventually leads to gearbox failure.Therefore, real-time status is carried out to planetary gear train
It monitors and discovery failure is considerable work early, can both prevent ahead of time, timely maintenance, and can avoid damaging as far as possible
Wound expands, and reduces accident probability.
The status monitoring in industry for planetary gear train largely uses vibration monitoring or Oil Monitoring at present, both
In the presence of as following drawbacks: first is that can only can just reflect in the failure middle and later periods, larger economic loss is be easy to cause, second is that will receive
The interference of front and back part is larger, testing result inaccuracy.
The utility model is exactly a kind of wind-driven generator group wheel box planetary gear fault testing mechanism proposed on this basis
Structure makes it acquire the strain variation of gear Meshing Pair in real time in gear-box operational process, is consequent malfunction intellectual analysis and event
Barrier positioning provides data and supports, real to belong to one of current important research and development project.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of planetary wheel of wind turbine gearbox fault detection mechanisms, make it
It acquires the strain variation of gear Meshing Pair in real time in gear-box operational process, is mentioned for consequent malfunction intellectual analysis and fault location
It is supported for data, to overcome the shortcomings of existing wind-driven generator group wheel box planetary gear fault detection system.
In order to solve the above technical problems, the utility model provides a kind of planetary wheel of wind turbine gearbox fault detection mechanism, packet
Foil gauge group and data collector connected to it are included,
The foil gauge group includes multiple foil gauges, and the multiple foil gauge is separately positioned on the tooth being meshed with planetary gear
On the tooth socket inner wall of circle and/or sun gear, the multiple foil gauges being arranged on the tooth socket inner wall of the gear ring pass through data respectively
Transmission line is connect with the data collector, and the multiple foil gauges being arranged on the sun gear tooth socket inner wall pass through wirelessly respectively
Transmitting device is connect with the data collector；
The data collector, for receiving the real-time strain data of the multiple foil gauge.
As a kind of improvement of the utility model, the radio transmitting device includes wireless transmitter and is wirelessly connected with it
Wireless receiver, the wireless transmitter is arranged on sun gear, connect with the foil gauge on the sun gear tooth socket inner wall,
The wireless receiver is arranged on gear case body, connect with the data collector.
Be further improved, be uniformly arranged along the circumference three groups on the gear ring and/or sun gear described in foil gauge group, every group is answered
Becoming piece group includes 8 foil gauges, and 8 foil gauges are divided into two column, are separately positioned on two adjacent tooth socket inner walls, each
4 foil gauges in tooth socket are placed equidistant with along tooth socket, and the foil gauge in two adjacent sheaves is staggered setting.
It is further improved, the foil gauge uses resistance strain gage, and the resistance strain gage is fixed using strong adherence agent
In the roller seating space bottom of tooth socket.
It is further improved, the Acquisition Circuit inside the data collector is answered using described in the connection of Hui Shi circuit half-bridge connection
Become piece, for acquiring the compliance voltage data of the foil gauge.
By adopting such a design, the utility model at least has the following advantages:
1, the utility model planetary wheel of wind turbine gearbox fault detection mechanism passes through in existing planetary wheel of wind turbine gearbox system
It installs multiple foil gauges in gear pair additional, is able to achieve in gear-box operational process in planetary gear and gear ring or sun gear engagement process
Subtle strain variation provided effectively for consequent malfunction analysis and by reception of the data collector to the subtle strain variation
Data are supported.
2, the utility model is also by being uniformly arranged foil gauge group at three respectively on gear ring and sun gear circumference, and every
Locate foil gauge group and 8 foil gauges are set, is provided strong support for consequent malfunction positioning.
3, the utility model is able to achieve the generation for taking precautions against failure early, solves the difficulty for being difficult to find gearbox fault in early days
Topic, avoids and omits problem caused by artificial carelessness, while avoiding the fault progression later period and can only replace the great damage of gear-box
It loses and occurs, for the safety and reliability for improving blower, reduce blower maintenance cost and failure cost makes major contribution.
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 structural schematic diagram that the utility model planetary wheel of wind turbine gearbox fault detection mechanism is installed on gear-box.
Fig. 2 is installation signal of the foil gauge on gear ring in the utility model planetary wheel of wind turbine gearbox fault detection mechanism
Figure.
Fig. 3 is the data acquisition circuit of the Hui Shi half-bridge connection connection foil gauge used in the utility model data collector
Schematic diagram.
Fig. 4 is that principle of the utility model planetary wheel of wind turbine gearbox fault detection mechanism for intelligent analysis system is illustrated
Figure.
Wherein: 1 is gear ring；2 be planetary gear；3 be sun gear；4 are mounted on the position on gear ring for foil gauge, and 5 be strain
Piece is mounted on the position on sun gear.
Specific embodiment
Referring to shown in attached drawing 1, the present embodiment planetary wheel of wind turbine gearbox fault detection mechanism, including foil gauge group and and its
The data collector of connection.
The foil gauge group includes multiple foil gauges, and multiple foil gauge is separately positioned on the gear ring 1 being meshed with planetary gear 2
Or on the tooth socket inner wall of sun gear 2.If foil gauge is arranged when on 1 tooth socket inner wall 4 of gear ring, multiple foil gauge passes through number respectively
It is connect according to transmission line with the data collector.If foil gauge is arranged when on 3 tooth socket inner wall 5 of sun gear, multiple foil gauge point
Not Tong Guo radio transmitting device connect with the data collector.The data collector is used to receive the real-time inspection of multiple foil gauge
Measured data provides strong data and supports for consequent malfunction analysis and the conclusion that must be out of order.
Foil gauge, specific mounting means are respectively provided on the gear ring 1 and sun gear 3 in the present embodiment are as follows: along gear ring 1 and the sun
3 circumference, one group of foil gauge group of every 120 ° of arrangements is taken turns, then is respectively provided with three groups of foil gauge groups, every group of strain on gear ring 1 and sun gear 3
Piece group includes 8 foil gauges.8 foil gauges are divided into two column, are separately positioned on two adjacent tooth socket inner walls, each tooth socket
In 4 foil gauges be placed equidistant with along tooth socket, and the foil gauge in two adjacent sheaves is staggered setting, as shown in Fig. 2.Due to
Tooth socket on the gear ring and sun gear be skewed slot setting, so 8 foil gauges in every group of foil gauge group belong to successively with row
Star-wheel contact, forms continuous strain measurement data, provides safeguard for the accuracy of testing result.
The strain measurement data export on sun gear 3 is used into radio transmitting device, the wireless transmission in the present embodiment
Device includes wireless transmitter and the wireless receiver that is wirelessly connected with it.The wireless transmitter is arranged on sun gear 3, with this
Foil gauge connection on sun gear tooth socket inner wall, the wireless receiver are arranged on gear case body, connect with the data collector
It connects, then realizes the strain data of the foil gauge group on real-time detection sun gear 3 in gear-box operational process.
The foil gauge uses resistance strain gage in the present embodiment, which is fixed on accordingly using strong adherence agent
The roller seating space bottom of tooth socket.
In addition, the Acquisition Circuit in the present embodiment inside the data collector is corresponding using the connection of Hui Shi circuit half-bridge connection
Foil gauge, for acquiring the compliance voltage data of each foil gauge.As the display of attached drawing 3 passes through the connection strain of Hui Shi half-bridge connection
The data acquisition circuit of piece, wherein R1 is the foil gauge being correspondingly connected with, and R2 is temperature-compensating plate, and R3, R4 are constant resistance, then leads to
Cross the compliance voltage data of the reading foil gauge R1 of the Hui Shi half-bridge connection circuit energy direct convenience.
The present embodiment planetary wheel of wind turbine gearbox fault detection mechanism can be used for planetary wheel of wind turbine gearbox fault detection intelligence
Energy analysis system is supported for providing data for the intelligent analysis system.Referring to shown in attached drawing 4, which includes
Data analysis module, fault location display and the Falt prealarming device being connect with planetary wheel of wind turbine gearbox fault detection mechanism.
The data analysis module, for receiving the strain measurement data of data collector transmission, and to reception data
It analyzed, calculated, prejudge out the gear case planet wheel fault condition type and abort situation；The Falt prealarming device, for pair
The fault condition that the data analysis module predicts carries out early warning；The fault location display, for the data analysis module
The abort situation predicted is shown, operation maintenance personnel is facilitated to find failure early.
The utility model based on gearbox of wind turbine planetary gear train, by between ring gear and planetary gear, with
And increase the foil gauge group detected for planetary gear strain data between planetary gear and sun gear, planetary gear train tooth can be monitored in real time
The strain regime for taking turns Meshing Pair, for the analysis and calculating of subsequent data analysis module, realization can amplify in the failure budding period
See guilty culprit, solve the problems, such as early stage be difficult discovery, can take precautions against or finely safeguard early, avoid failure hair
Exhibition the case where can only replacing gear-box in later period appearance, improves the safety and reliability of blower, reduce the maintenance of blower at
Sheet and failure cost.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, those skilled in the art make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above,
It falls within the protection scope of the present utility model.
Claims (5)
1. a kind of planetary wheel of wind turbine gearbox fault detection mechanism, which is characterized in that including foil gauge group and number connected to it
According to collector,
The foil gauge group includes multiple foil gauges, and the multiple foil gauge is separately positioned on the gear ring being meshed with planetary gear
And/or on the tooth socket inner wall of sun gear, the multiple foil gauges being arranged on the tooth socket inner wall of the gear ring are passed by data respectively
Defeated line is connect with the data collector, and the multiple foil gauges being arranged on the sun gear tooth socket inner wall pass through respectively wirelessly to be passed
Defeated device is connect with the data collector；
The data collector, for receiving the real-time strain data of the multiple foil gauge.
2. planetary wheel of wind turbine gearbox fault detection mechanism according to claim 1, which is characterized in that the wireless transmission
Device includes wireless transmitter and the wireless receiver that is wirelessly connected with it, and the wireless transmitter is arranged on sun gear, with
Foil gauge connection on the sun gear tooth socket inner wall, the wireless receiver is arranged on gear case body, with the data
Collector connection.
3. planetary wheel of wind turbine gearbox fault detection mechanism according to claim 1 or 2, which is characterized in that the gear ring
And/or foil gauge group described in being uniformly arranged along the circumference three groups on sun gear, every group of foil gauge group include 8 foil gauges, described 8
Foil gauge is divided into two column, is separately positioned on two adjacent tooth socket inner walls, and 4 foil gauges in each tooth socket are equidistant along tooth socket
Setting, and the foil gauge in two adjacent sheaves is staggered setting.
4. planetary wheel of wind turbine gearbox fault detection mechanism according to claim 1, which is characterized in that the foil gauge is adopted
With resistance strain gage, the resistance strain gage is fixed on the roller seating space bottom of tooth socket using strong adherence agent.
5. planetary wheel of wind turbine gearbox fault detection mechanism according to claim 1, which is characterized in that the data acquisition
Acquisition Circuit inside device connects the foil gauge using Hui Shi circuit half-bridge connection, for acquiring the electrostrictive strain of the foil gauge
Press data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821840785.3U CN208872518U (en) | 2018-11-09 | 2018-11-09 | A kind of planetary wheel of wind turbine gearbox fault detection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821840785.3U CN208872518U (en) | 2018-11-09 | 2018-11-09 | A kind of planetary wheel of wind turbine gearbox fault detection mechanism |
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| CN208872518U true CN208872518U (en) | 2019-05-17 |
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| CN201821840785.3U Active CN208872518U (en) | 2018-11-09 | 2018-11-09 | A kind of planetary wheel of wind turbine gearbox fault detection mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253881A (en) * | 2018-11-09 | 2019-01-22 | 国电联合动力技术有限公司 | Planetary wheel of wind turbine gearbox fault detection mechanism and intelligent analysis system and method |
| CN110174045A (en) * | 2019-06-24 | 2019-08-27 | 南京高速齿轮制造有限公司 | Gear case planet wheel bearing inner race strain measurement system |
| CN113008549A (en) * | 2021-04-12 | 2021-06-22 | 宁波大学 | Variable-size RV reducer planetary gear stress measuring device and method |
-
2018
- 2018-11-09 CN CN201821840785.3U patent/CN208872518U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253881A (en) * | 2018-11-09 | 2019-01-22 | 国电联合动力技术有限公司 | Planetary wheel of wind turbine gearbox fault detection mechanism and intelligent analysis system and method |
| CN110174045A (en) * | 2019-06-24 | 2019-08-27 | 南京高速齿轮制造有限公司 | Gear case planet wheel bearing inner race strain measurement system |
| CN113008549A (en) * | 2021-04-12 | 2021-06-22 | 宁波大学 | Variable-size RV reducer planetary gear stress measuring device and method |
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