CN104061122A - Automatic monitoring system and method for belt tension and wind power generator pitching system - Google Patents
Automatic monitoring system and method for belt tension and wind power generator pitching system Download PDFInfo
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- CN104061122A CN104061122A CN201410306488.0A CN201410306488A CN104061122A CN 104061122 A CN104061122 A CN 104061122A CN 201410306488 A CN201410306488 A CN 201410306488A CN 104061122 A CN104061122 A CN 104061122A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention discloses an automatic monitoring system for belt tension. The system comprises a belt tension detector, a controller for controlling the belt tension detector to start and stop, a data processor for processing the data collected by the belt tension detector and an alarm; the belt tension detector comprises a sensor, data collection equipment and an automatic knocking mechanism. The invention also discloses an automatic monitoring method for belt tension, a wind power generator pitching system comprising the automatic monitoring system for belt tension and an automatic monitoring method for measuring synchronous belt tension in the system. The belt tension can be automatically monitored in an online mode, thus greatly facilitating the condition that the belt operation state needs to be remotely monitored. The action of automatically knocking the belt is realized by using the electromagnet principle and the cam structure feature, manual knocking is avoided, manpower and material resources are saved and economic and practical effects are realized. The work state of a synchronous belt in the pitching system is periodically automatically monitored, so the safety loopholes of a wind power generator set is greatly reduced.
Description
Technical field
The present invention relates to belt tension monitoring technical field, particularly relate to a kind of belt tension automatic monitoring system and monitoring method and wind turbine pitch-controlled system.
Background technique
Increasingly mature along with wind-power electricity generation machine technology, various mature technologies and new technology are also constantly applied on wind-driven generator.Such as the impeller part of wind-driven generator, the power system of traditional control vane propeller-changing angle is hydraulic transmission, and along with the development of Timing Belt technology, it is also applied in the change oar drive system of blower fan.Toothed belt transmission has gear (synchronous pulley) transmission concurrently, and chain transmission and the advantage separately with transmission, do not need to lubricate, and slippage is little, pollution-free, and noise is little, compact structure, the feature of smooth running.
But also there are a lot of defects in toothed belt transmission, if adjust improperly, easily there is broken teeth, slippage phenomenon, even there is phenomenon of rupture.Because wind load is unstable, and wind power generating set easily vibrates, improper if Timing Belt is installed and used, and is easy to rupture, sideslip and climbing tooth phenomenon.And, along with the operation of unit, due to the Timing Belt tension change that the reasons such as Timing Belt distortion and unit vibration cause, all can cause serious consequence.On large-scale wind driven generator unit, the condition detecting system of the pitch-controlled system still not driving for Timing Belt at present.For directly driving unit, blade aerodynamic brake is crucial control system, all loses efficacy if the change oar of three blades drives, will bringing on a disaster property consequence.Even if thereby the Timing Belt of a blade damages and causes becoming oar and drive and lost efficacy, also will bring to unit equipment badly damagedly, cause larger economic loss.
The test of Timing Belt tension force is at present all to use Portable belt tensiometer (Tension Meter) to obtain, as visible in accompanying drawing 1, by knocking the Timing Belt 2 of tensioning to it is shaken with natural frequency, this static natural frequency is measured by sensor 1 under pulsed light wave auxiliary.The tension force of Timing Belt calculates by formula below: T=4 × m × L
2× f
2
T=belt tension, unit: N
M=belt line weight, unit: kg/m
L=is the Belt Length of holding part not, unit: m
F=is the belt natural frequency of holding part not, unit: Hz
The Timing Belt tension test that present stage is applied to pitch system of wind driven generator is that engineer arrives at manual directly test in blower fan, and first the method needs blower fan out of service, and locks impeller, and tester enters impeller inside and just can operate.In addition, the method can not be accomplished long-term measurement in real time, and is subject to the impact of test condition, for example, under severse weather, likely cannot arrive at blower fan, especially marine wind electric field, and the time window that arrives at blower fan is restricted especially, can not complete according to plan test.
As can be seen here, above-mentioned existing belt tension instrument, in structure, method and use, obviously still has inconvenience and defect, and is urgently further improved.How to found and a kind ofly can realize on-line monitoring and facilitate feasible a kind of belt tension automatic monitoring system, becoming the current industry utmost point needs improved target.
Summary of the invention
The technical problem to be solved in the present invention is to provide and a kind ofly can realizes on-line monitoring and facilitate feasible belt tension automatic monitoring system, makes the running state that it can Real-Time Monitoring belt, thereby overcomes the deficiency of existing belt tension instrument.
For solving the problems of the technologies described above, the invention provides a kind of belt tension automatic monitoring system, comprise belt tension detector, described belt tension detector comprises for detection of the sensor of belt vibration and the data acquisition equipment being connected with sensor, described belt tension automatic monitoring system also comprises the controller of controlling the start and stop of described belt tension detector, the data processing system that the data of described belt tension detector collection are processed and the status alert device being connected with data processing system, described belt tension detector also comprises the automatic striking mechanism that automatically knocks belt, described automatic striking mechanism is fixed on around described belt, described sensor be fixed on described belt above or below.
As further improvement, described automatic striking mechanism comprises and knocks parts and knock member driving mechanism, described in knock parts for knocking hammer, described in knock hammer into shape be positioned at described belt above or below; The described iron block that to knock member driving mechanism be electromagnet inhales when switching on electromagnet mutually, described in inhale mutually realization with iron block when knocking hammer and switch on by electromagnet and knock belt; Or, described in to knock member driving mechanism be the motor that cam and driving cam rotate, described in described cam drives in the time rotating, knock hammer and skew occur and reset, described in realize while knocking hammer skew and knock belt.
Further improve, described data processing system is also directly connected with described controller.
Further improve, described belt is Timing Belt.
The technical problem that the present invention also will solve is to provide a kind of belt tension automatic monitoring method of energy on-line monitoring, makes its running state real-time monitoring to belt, thereby overcomes the deficiency of existing belt tension detector.
For solving the problems of the technologies described above, the invention provides the automatic monitoring method of belt tension automatic monitoring system, its monitoring step is:
(1) described in described controller control, belt tension detector is opened;
(2) the automatic striking mechanism of described belt tension detector knocks belt automatically, described sensor is surveyed the natural frequency of belt, described data acquisition equipment carries out data capture, when after described data acquisition equipment data acquisition, data are exported to described data processing system, and belt tension detector quits work described in described controller control;
(3) the Data classification processing of described data processing system to described data acquisition equipment transmission, to data storage, the statistics of normal range (NR); Abnormal data is reported to the police by described status alert device.
As further improvement, in above-mentioned steps (3), abnormal data point one-level is changed to signal, secondary preparation spare part signal, three grades of lasting observation signal processing immediately, described one-level is changed to signal immediately by the alarm equipment alarm of described status alert device, secondary is prepared to spare part signal, three grades of lasting observation signals by the tutorial light instruction of described status alert device.
A kind of further improved belt tension automatic monitoring method is also provided, and its monitoring step is:
(1) described in described controller control, belt tension detector is opened;
(2) the automatic striking mechanism of described belt tension detector knocks belt automatically, described sensor is surveyed the natural frequency of belt, described data acquisition equipment carries out data capture, when after described data acquisition equipment data acquisition, data are exported to described data processing system, and belt tension detector quits work described in described controller control;
(3) the Data classification processing of described data processing system to described data acquisition equipment transmission, to data storage, the statistics of normal range (NR); Abnormal data point one-level is changed to signal, secondary preparation spare part signal, three grades of lasting observation signal processing immediately, it is that transfer instruction is to described controller that described one-level is changed to signal treatment step immediately, repeat above-mentioned steps (1), (2), (3), the abnormal data that result is still changed signal immediately for one-level, by the alarm equipment alarm of described status alert device, is prepared spare part signal, three grades of lasting observation signals by the tutorial light instruction of described status alert device to secondary.
The technical problem that the present invention also solves is to provide a kind of wind turbine pitch-controlled system that can realize on-line monitoring Timing Belt running state, makes the working state that it can Real-Time Monitoring Timing Belt, thereby overcomes the deficiency of existing wind turbine pitch-controlled system.
For solving the problems of the technologies described above, the invention provides a kind of wind turbine pitch-controlled system, the drive unit of described pitch-controlled system passes through toothed belt transmission, described pitch-controlled system comprises the above-mentioned belt tension automatic monitoring system to Timing Belt Real-Time Monitoring, described controller is connected with the master control system of described wind turbine, described belt tension automatic monitoring system comprises three arranged side by side and three Timing Belts corresponding belt tension detectors respectively, described status alert device comprise three with three alarm mechanisms that Timing Belt is corresponding.
Further improve, the data acquisition equipment of described three belt tension detectors is merged into one.
The belt tension automatic monitoring method that the invention also discloses belt tension automatic monitoring system in above-mentioned wind turbine pitch-controlled system, monitoring step is:
(1) described controller sends the application of the described Timing Belt working state of monitoring to master control system;
(2) in the time of the application of described master control system by described controller, wind-powered electricity generation unit is out of service, and belt tension detector is opened described in described controller control;
(3) the automatic striking mechanism of described belt tension detector knocks Timing Belt automatically, described sensor is surveyed the natural frequency of Timing Belt, described data acquisition equipment carries out data capture, when after described data acquisition equipment data acquisition, data are exported to described data processing system, and described controller is cancelled to the application of master control system and is controlled described belt tension detector and quits work;
(4) the Data classification processing of described data processing system to described data acquisition equipment transmission, to data storage, the statistics of normal range (NR); Abnormal data is reported to the police by the alarm mechanism of described status alert device.
Adopt above-mentioned technological scheme, the present invention at least has the following advantages:
(1) tension force that belt tension automatic monitoring system of the present invention can online auto monitoring belt, is very easy to the situation that needs remote monitoring belt running state.
(2) in the present invention, belt tension detector, by utilizing electromagnet principle and cam structure feature, has been realized the action of automatically knocking belt, has avoided manually knocking, and has saved manpower and materials, economical and practical.
(3) in pitch system of wind driven generator of the present invention, Timing Belt tension monitoring system is passed through regularly the working state of measurement Timing Belt automatically, adjust in time the tension force of Timing Belt, greatly reduce the potential safety hazard that adopts the wind power generating set of this type of pitch-controlled system to exist, reliability and the availability of wind-driven generator unit are improved, thereby improve the generated energy of wind energy turbine set, reduce O&M cost, increased economic benefit.
Brief description of the drawings
Above-mentioned is only the general introduction of technical solution of the present invention, and in order to better understand technological means of the present invention, below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
The existing belt tension instrument of Fig. 1 working principle schematic diagram;
Timing Belt tension monitoring System Working Principle schematic diagram in Fig. 2 embodiment of the present invention pitch system of wind driven generator;
The structural representation of belt tension detector in wheel hub in Fig. 3 embodiment of the present invention pitch system of wind driven generator;
Fig. 4 is the reverse side schematic diagram of Fig. 3;
Fig. 5 is the partial enlarged drawing of belt tension detector in Fig. 3;
Fig. 6 is the partial enlarged drawing of belt tension detector in Fig. 4.
Embodiment
Visible with reference to accompanying drawing 2 to 4, a kind of pitch system of wind driven generator of the present invention, passes through Timing Belt 2 transmission control vane propeller-changing angles in pitch system of wind driven generator.For working state that can Real-Time Monitoring Timing Belt 2, this pitch system of wind driven generator comprises Timing Belt tension force automatic monitoring system.The data processing system that the data that Timing Belt tension force automatic monitoring system comprises Timing Belt tension detector 4, control the controller of Timing Belt tension detector 4 start and stop, gather Timing Belt tension detector 4 are processed and the status alert device being connected with data processing system.The tension force of the Timing Belt 2 that Timing Belt tension detector 4 coordinates with pitch variable bearings 7 for detection of wheel hub 6 outsides.Visible with reference to accompanying drawing 5 and 6, Timing Belt tension detector 4 comprises that being positioned at Timing Belt 2 tops responds to sensor 1, the data acquisition equipment being connected with sensor 1 of Timing Belt vibration frequencies and the automatic striking mechanism that automatically knocks Timing Belt 2.Automatically striking mechanism comprises and knocks parts 3 and knock member driving mechanism 5, knock parts 3 for knocking hammer, knock member driving mechanism 5 for electromagnet and be positioned at the fixing iron block below electromagnet, knock hammer and is connected the top that is positioned at Timing Belt 2 with electromagnet, thereby electromagnet and the iron block below it are inhaled mutually realization and knocked to hammer into shape and knock Timing Belt 2 in the time that electromagnet switch on.Automatically the member driving mechanism 5 that knocks of striking mechanism can be also the motor of cam and driving cam rotation, in the time opening the rotation of motor driving cam, cam driven knocks hammer and skew occurs and reset, and knocks when skew occurs hammer and knocks Timing Belt 2, thereby complete the action of knocking Timing Belt 2.Certainly the sensing probe of sensor 1 and the below of knocking parts 3 and can be positioned at according to the on-the-spot installation situation of Timing Belt 2 Timing Belt 2.Sensor 1 and automatically striking mechanism are all fixed on the fixed support on Timing Belt 2 sides.In pitch system of wind driven generator, there are three Timing Belt tension detectors 4 arranged side by side for three three corresponding Timing Belts 2 of blade.Certainly, in three Timing Belt tension detectors 4, data acquisition equipment can be merged into one, and sensor 1 and automatically striking mechanism are still three, and data acquisition equipment reads the data of three sensor probes in turn, forms three-channel Timing Belt tension detector.
The controller of above-mentioned control Timing Belt tension detector 4 is connected with the master control system communication of wind-driven generator.Under suitable test operating mode, controller sends the application of monitoring Timing Belt 2 working staties to master control system, in the time that master control system is applied for by this, wind power generating set is out of service, controller sends instruction, and Timing Belt tension detector 4 starts the tension force of Timing Belt 2 to measure, and the automatic striking mechanism of Timing Belt tension detector 4 knocks Timing Belt 2 automatically, sensor 1 is surveyed the natural frequency of Timing Belt 2, and data acquisition equipment carries out image data.After data acquisition equipment data acquisition, will detect data transmission to data processing system, controller is cancelled to send the application of monitoring Timing Belt 2 working staties and control Timing Belt tension detector 4 to master control system and is quit work.
The Data classification processing of data processing system to data acquisition equipment transmission, to the data of three Timing Belt tension force in data storage a period of time of normal range (NR), the line number of going forward side by side is output afterwards according to statistics, exceeds data and automatically overflow; According to the data of long-term experiment, can set different early warning values, produce different alert levels.Meanwhile, the average gathering according to scheduled store data acquisition equipment, sets up trend database.For abnormal data, can point one-level change immediately signal, secondary preparation spare part signal, three grades of lasting observation signal processing, one-level is changed to signal immediately by the alarm equipment alarm of status alert device, secondary is prepared to spare part signal, three grades of lasting observation signals by the corresponding tutorial light instruction of status alert device.
Understand accurately three Timing Belts working state separately for clear, status alert device comprise three with three alarm mechanisms that Timing Belt is corresponding.Alarm mechanism is divided into the tutorial light of alarm and different colours according to different alert levels.
In order to ensure the accuracy of monitoring result, between data processing system and controller, being also provided with a feedback line connects, be the result of one stage signal or possible data mistake to measurement result for the first time, data processing system passes through feedback line transfer instruction to controller, controller again sends instruction Timing Belt tension detector 4 tension force of Timing Belt 2 is carried out to data capture, image data is transferred to data processing system, result is still changed to the abnormal data of signal by the alarm equipment alarm of alarm mechanism immediately for one-level, secondary is prepared to spare part signal, three grades of lasting observation signals are by the corresponding tutorial light instruction of alarm mechanism.
In pitch system of wind driven generator of the present invention, the effect of Timing Belt tension monitoring system is equivalent to increase a feedback means to the pitch-controlled system of unit; solve pitch-controlled system motor and revolved the problem of compiling without feedback; and the present invention does not affect the normal operation of unit; and can access theft-resistant link chain and the condition monitoring system of unit, play protection and forewarning function.
In the present invention, Timing Belt tension monitoring system is by regularly automatically measuring the working state of Timing Belt, adjust in time the tension force of Timing Belt, greatly reduce the potential safety hazard that adopts the wind power generating set of this type of pitch-controlled system to exist, reliability and the availability of wind-driven generator unit are improved, thereby improve the generated energy of wind energy turbine set, reduce O&M cost, increased economic benefit.
Timing Belt tension monitoring system of the present invention also can be applied to the industry of the belt transmission operations such as other Timing Belt, flat belt or vee belt, as mine transmission, harbour transmission etc.
The above; it is only preferred embodiment of the present invention; not the present invention is done to any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection scope of the present invention.
Claims (10)
1. a belt tension automatic monitoring system, comprise belt tension detector, described belt tension detector comprises for detection of the sensor of belt vibration and the data acquisition equipment being connected with sensor, it is characterized in that, described belt tension automatic monitoring system also comprises the controller of controlling the start and stop of described belt tension detector, the data processing system that the data of described belt tension detector collection are processed and the status alert device being connected with data processing system, described belt tension detector also comprises the automatic striking mechanism that automatically knocks belt, described automatic striking mechanism is fixed on around described belt, described sensor be fixed on described belt above or below.
2. belt tension automatic monitoring system according to claim 1, is characterized in that, described automatic striking mechanism comprises and knock parts and knock member driving mechanism, described in knock parts for knocking hammer, described in knock hammer into shape be positioned at described belt above or below; The described iron block that to knock member driving mechanism be electromagnet inhales when switching on electromagnet mutually, described in inhale mutually realization with iron block when knocking hammer and switch on by electromagnet and knock belt; Or, described in to knock member driving mechanism be the motor that cam and driving cam rotate, described in described cam drives in the time rotating, knock hammer and skew occur and reset, described in realize while knocking hammer skew and knock belt.
3. belt tension automatic monitoring system according to claim 1, is characterized in that, described data processing system is also directly connected with described controller.
4. according to the belt tension automatic monitoring system described in claims 1 to 3 any one, it is characterized in that, described belt is Timing Belt.
5. a belt tension automatic monitoring method for the belt tension automatic monitoring system as described in claim 1 to 4 any one, is characterized in that, monitoring step is:
(1) described in described controller control, belt tension detector is opened;
(2) the automatic striking mechanism of described belt tension detector knocks belt automatically, described sensor is surveyed the natural frequency of belt, described data acquisition equipment carries out data capture, when after described data acquisition equipment data acquisition, data are exported to described data processing system, and belt tension detector quits work described in described controller control;
(3) the Data classification processing of described data processing system to described data acquisition equipment transmission, to data storage, the statistics of normal range (NR); Abnormal data is reported to the police by described status alert device.
6. belt tension automatic monitoring method according to claim 5, it is characterized in that, in described step (3), abnormal data point one-level is changed to signal, secondary preparation spare part signal, three grades of lasting observation signal processing immediately, described one-level is changed to signal immediately by the alarm equipment alarm of described status alert device, secondary is prepared to spare part signal, three grades of lasting observation signals by the tutorial light instruction of described status alert device.
7. a belt tension automatic monitoring method for belt tension automatic monitoring system as claimed in claim 3, is characterized in that, monitoring step is:
(1) described in described controller control, belt tension detector is opened;
(2) the automatic striking mechanism of described belt tension detector knocks belt automatically, described sensor is surveyed the natural frequency of belt, described data acquisition equipment carries out data capture, when after described data acquisition equipment data acquisition, data are exported to described data processing system, and belt tension detector quits work described in described controller control;
(3) the Data classification processing of described data processing system to described data acquisition equipment transmission, to data storage, the statistics of normal range (NR); Abnormal data point one-level is changed to signal, secondary preparation spare part signal, three grades of lasting observation signal processing immediately, it is that transfer instruction is to described controller that described one-level is changed to signal treatment step immediately, repeat above-mentioned steps (1), (2), (3), the abnormal data that result is still changed signal immediately for one-level, by the alarm equipment alarm of described status alert device, is prepared spare part signal, three grades of lasting observation signals by the tutorial light instruction of described status alert device to secondary.
8. a wind turbine pitch-controlled system, the drive unit of described pitch-controlled system passes through toothed belt transmission, it is characterized in that, described pitch-controlled system comprises belt tension automatic monitoring system as claimed in claim 4, described controller is connected with the master control system of described wind turbine, described belt tension automatic monitoring system comprises three arranged side by side and three Timing Belts corresponding belt tension detectors respectively, described status alert device comprise three with three alarm mechanisms that Timing Belt is corresponding.
9. wind turbine pitch-controlled system according to claim 8, is characterized in that, the data acquisition equipment of described three belt tension detectors is merged into one.
10. a belt tension automatic monitoring method for belt tension automatic monitoring system in wind turbine pitch-controlled system as claimed in claim 8 or 9, is characterized in that, monitoring step is:
(1) described controller sends the application of the described Timing Belt working state of monitoring to master control system;
(2) in the time of the application of described master control system by described controller, wind-powered electricity generation unit is out of service, and belt tension detector is opened described in described controller control;
(3) the automatic striking mechanism of described belt tension detector knocks Timing Belt automatically, described sensor is surveyed the natural frequency of Timing Belt, described data acquisition equipment carries out data capture, when after described data acquisition equipment data acquisition, data are exported to described data processing system, and described controller is cancelled to the application of master control system and is controlled described belt tension detector and quits work;
(4) the Data classification processing of described data processing system to described data acquisition equipment transmission, to data storage, the statistics of normal range (NR); Abnormal data is reported to the police by the alarm mechanism of described status alert device.
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|---|---|---|---|
| CN201410306488.0A CN104061122B (en) | 2014-06-30 | 2014-06-30 | A kind of belt tension automatic monitoring system and monitoring method and wind turbine pitch-controlled system |
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| CN201410306488.0A CN104061122B (en) | 2014-06-30 | 2014-06-30 | A kind of belt tension automatic monitoring system and monitoring method and wind turbine pitch-controlled system |
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| CN105181331A (en) * | 2015-10-23 | 2015-12-23 | 成都嘉陵华西光学精密机械有限公司 | Detection and analysis device, detection and analysis system and detection and analysis method for front-end wheel train of portable engine |
| CN109211455A (en) * | 2017-11-22 | 2019-01-15 | 中国航空工业集团公司北京航空精密机械研究所 | A kind of measurement method, system and the equipment of synchronous belt tensile force |
| CN109946068A (en) * | 2017-12-19 | 2019-06-28 | 新疆金风科技股份有限公司 | A kind of method and device of transmission belt exception in detection driving assembly |
| CN112985670A (en) * | 2021-01-29 | 2021-06-18 | 合肥晶合集成电路股份有限公司 | Automatic tension monitoring system of semiconductor equipment |
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| CN104061122B (en) | 2017-01-04 |
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