CN103604604A - Device for fault simulation of gear transmission case of wind turbine - Google Patents
Device for fault simulation of gear transmission case of wind turbine Download PDFInfo
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- CN103604604A CN103604604A CN201310631053.9A CN201310631053A CN103604604A CN 103604604 A CN103604604 A CN 103604604A CN 201310631053 A CN201310631053 A CN 201310631053A CN 103604604 A CN103604604 A CN 103604604A
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Abstract
The invention discloses a device for fault simulation of a gear transmission case of a wind turbine. The device for fault simulation of the gear transmission case of the wind turbine comprises a frequency conversion system, a reduction gear system, a speed increase gear system, a load loading system and a data collection and analysis system. The frequency conversion system is connected with the reduction gear system and the load loading system. The reduction gear system is connected with the speed increase gear system through a universal coupler (5). The data collection and analysis system can be connected with the reduction gear system and the speed increase gear system. By the adoption of the device for fault simulation of the gear transmission case of the wind turbine, simulation of common faults such as corrosive pitting, peeling off, fracture and tooth breakage of the wind turbine, simulation of the rotation speed and the load of the gear transmission case of the wind turbine, and automatic collection of an acceleration signal are achieved, and various faults of the wind turbine are accurately judged and located through an data analyzer. To sum up, the device for fault simulation of the gear transmission case of the wind turbine has the remarkable effect on prevention and elimination of the faults of the gear transmission case of the wind turbine, and therefore the device for fault simulation of the gear transmission case of the wind turbine is broad in application prospect.
Description
Technical field
The present invention relates to technical field of wind power generator, be specifically related to a kind of aerogenerator gear failure simulation device.
Background technology
Gear is positioned at the cabin of aerogenerator, is the vitals on driving chain of wind driven generator, is the important pivot that connects main shaft and generator.Gear case generally consists of primary planet pinion transmission and the transmission of two-stage parallel gears; inner structure and stressing conditions are comparatively complicated; especially the in the situation that of variable working condition, variable load, move; easily break down; gear is as the critical component of gear case; its inefficacy usually can cause that the catastrophic destruction of gear case, the stop time causing from various enquiry data gear distresses have accounted for gearbox fault and caused the more than 30% of stop time.In the face of the frequent generation of wind energy conversion system gearbox fault and the huge loss causing, how its planetary gear system is carried out accurately to condition monitoring and fault diagnosis and be one and significantly have again challenging research.
At present, a lot of to the fault detection method of wind energy conversion system gear case, mainly contain oil sample diagnosis, acoustic-emission, vibration signal diagnosis etc.Oil sample (liquid) analysis is by the composition of abrasive dust and the technology status that content judges gear in lubricating oil in analysis gear operational process, comprises physico-chemical analysis, contamination level measurement, emission spectrographic analysis, Infrared spectroscopy and analyzing iron spectrum etc.But this method operability, real-time are poor.Acoustic-emission is whether the voice signal analysis of gearbox system being sent according to voice collection device comes failure judgement to exist, but aerogenerator condition of work is severe, is subject to noise serious, acoustic-emission poor practicability.Vibration signal diagnosis is by wind energy conversion system gear case body analysis of vibration signal is carried out to fault diagnosis, while breaking down due to wind energy conversion system gear case, can produce on system the impacts such as impact, stiffness variation, system vibration performance can change, and vibrational system gathers by acceleration transducer, affected by environment little, so vibration signal diagnosis is a kind of the most frequently used method.
But the planetary gear system in wind energy conversion system gear case, because planetary gear not only exists revolution but also have rotation, so the sun gear in system, planetary gear, gear ring turn frequently inconsistent, in the past inapplicable for the diagnostic method of fixed axis gear system.Planetary gear system vibration transfer path is complicated simultaneously, and vibration intercouples, and vibration signal modulation phenomenon is serious, has brought huge challenge also to analysis and the fault diagnosis of vibration signal.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of simple in structure, easy to use, and the device of the accurate wind-driven generator simulation gear fault of energy.
For solving above technical matters, technical scheme of the present invention is: 1, a kind of aerogenerator gear failure simulation device, it is characterized in that: comprise frequency conversion system, reduction gear device, increase gear system, load loading system, data acquisition and analytic system, described frequency conversion system is connected with the reducing gear train load loading system of unifying respectively, described reduction gear device is connected with all Hooks coupling universal couplings of crossing of speed increasing gear train, and described data acquisition and analytic system can be connected with reduction gear device, increase gear system respectively.
Described frequency conversion system is comprised of frequency converter and variable-frequency motor.
Described reduction gear device is comprised of slow down end planetary stage and the end parallel stage of slowing down.
Described increase gear system is comprised of speedup end planetary stage and speedup end parallel stage.
Described load loading system is comprised of loader, refrigeratory, loading motor.
Described data acquisition and analytic system are comprised of acceleration transducer, data acquisition line concentration, data acquisition unit, data-analyzing machine.
Above-mentioned acceleration transducer can be arranged on the end planetary stage that slows down, slow down in end parallel stage, speedup end planetary stage, speedup end parallel stage.
Described speedup end planetary stage is by planetary gear, sun gear, gear ring and system framework, and described speedup end parallel stage is comprised of two pairs of fixed axis gears.
Described deceleration end planetary stage is by planetary gear, sun gear, gear ring and system framework, and described deceleration end parallel stage is comprised of two pairs of fixed axis gears.
The using method of said apparatus is as follows:
1) by the various gears in the end planetary stage that slows down, slow down end parallel stage, speedup end planetary stage, speedup end parallel stage are used with spot corrosion, peel off, the gear of crackle, broken teeth problem replaces, and realized the simulation of various gear defects on aerogenerator impact in practical work process;
2) control to the end parallel stage gear case speed of slowing down by frequency converter and variable-frequency motor, has realized the simulation of various wind speed on aerogenerator impact in practical work process;
3), by frequency converter and the control of loading motor to the load of speedup end parallel stage gear case, realized various wind in practical work process and carried the simulation on aerogenerator impact;
4) by being arranged on the acceleration transducer that slows down end planetary stage, slows down in end parallel stage, speedup end planetary stage, speedup end parallel stage, realize the automatic collection of acceleration signal, and by data-analyzing machine accurate judgement and the location to the various faults of aerogenerator.
The beneficial effect of a kind of aerogenerator gear of the present invention failure simulation device is: 1, device realized comprise spot corrosion, peel off, the simulation of the aerogenerator most common failure such as crackle, broken teeth; 2, rotating speed and the load simulation of actual aerogenerator gear by frequency converter and variable-frequency motor and loading motor, have been realized; 3, realized the automatic collection of acceleration signal, and by data-analyzing machine accurate judgement and the location to the various faults of aerogenerator, this device has significant effect to the fault of prevention and eliminating wind energy conversion system gear case in sum, therefore has the wide market space.
Accompanying drawing explanation
Fig. 1 is aerogenerator gear failure simulation device structural representation.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
A kind of aerogenerator gear failure simulation device, comprise frequency conversion system, reduction gear device, increase gear system, load loading system, data acquisition and analytic system, described frequency conversion system is connected with the reducing gear train load loading system of unifying respectively, described reduction gear device is connected with all Hooks coupling universal couplings 5 of crossing of speed increasing gear train, and described data acquisition and analytic system can be connected with reduction gear device, increase gear system respectively.
Described frequency conversion system is comprised of frequency converter 1 and variable-frequency motor 2.
Described reduction gear device is comprised of slow down end planetary stage 4 and the end parallel stage 3 of slowing down.
Described data acquisition and analytic system are comprised of acceleration transducer 11, data acquisition line concentration, data acquisition unit, data-analyzing machine.
Described load loading system is comprised of loader 10, refrigeratory 9, loading motor 8.
Described increase gear system is comprised of speedup end planetary stage 6 and speedup end parallel stage 7.
Described variable-frequency motor 2 needs to connect 220V power supply, frequency converter 1 is connected with variable-frequency motor 2 by control line, frequency converter 1 can be exported constant voltage and fluctuation voltage by instruction, and to control the rotating speed of variable-frequency motor 2 be constant or fluctuation, and in wind-driven generator simulation practical work process, wind speed changes.Variable-frequency motor 2 drives reducer casing parallel stage 3 and reducer casing planetary stage 4 to rotate, and after Hooks coupling universal coupling 5, drives gearbox planetary stage 6 and gearbox parallel stage 7 to rotate.Wherein gearbox planetary stage 6 and gearbox parallel stage 7 are made for after dwindling by actual aerogenerator size.Gearbox planetary stage 6 is comprised of 2K-H planetary gear system, comprises planetary gear, sun gear, gear ring and framework, and gearbox parallel stage 7 is comprised of two pairs of fixed axis gear systems.The gear of gearbox planetary stage 6 and gearbox parallel stage 7 all can be replaced with various fault gears, as: spot corrosion, crackle, peel off, the fault gear such as broken teeth.Loading motor 10 is also controlled by frequency converter 1, hydraulic oil is pumped into loader 8, load is provided to gearbox planetary stage 6 and gearbox parallel stage 7, the rotating speed that changes loading motor 10 by frequency converter 1 can change the pressure of hydraulic oil, thereby provide different loads, load variations in wind-driven generator simulation practical work process.After cooling by refrigeratory 9 after hydraulic oil oil return, get back to fuel reserve tank.Acceleration transducer 11 can be arranged on gearbox planetary stage 6, gearbox parallel stage 7, slow down and hold in planetary stage 4, deceleration end parallel stage 3, gathers the vibration acceleration signal of tested casing.Acceleration signal is voltage signal, by data line, pass to data acquisition unit, data acquisition unit is converted to simulating signal by voltage signal and passes to data-analyzing machine, in data-analyzing machine, be provided with containing self-editing data analysis and fault diagnosis software, thereby realize the analysis of vibration signal and fault diagnosis.
Claims (10)
1. an aerogenerator gear failure simulation device, it is characterized in that: comprise frequency conversion system, reduction gear device, increase gear system, load loading system, data acquisition and analytic system, described frequency conversion system is connected with the reducing gear train load loading system of unifying respectively, described reduction gear device is connected with all Hooks coupling universal couplings (5) of crossing of speed increasing gear train, and described data acquisition and analytic system can be connected with reduction gear device, increase gear system respectively.
2. aerogenerator gear failure simulation device according to claim 1, is characterized in that: described frequency conversion system is comprised of frequency converter (1) and variable-frequency motor (2).
3. aerogenerator gear failure simulation device according to claim 1, is characterized in that: described reduction gear device is comprised of slow down end planetary stage (4) and the end parallel stage (3) of slowing down.
4. aerogenerator gear failure simulation device according to claim 1, is characterized in that: described increase gear system is comprised of speedup end planetary stage (6) and speedup end parallel stage (7).
5. aerogenerator gear failure simulation device according to claim 1, is characterized in that: described load loading system is comprised of loader (10), refrigeratory (9), loading motor (8).
6. aerogenerator gear failure simulation device according to claim 1, is characterized in that: described data acquisition and analytic system are comprised of acceleration transducer (11), data acquisition line concentration, data acquisition unit, data-analyzing machine.
7. according to the arbitrary described aerogenerator gear failure simulation device of claim 1-6, it is characterized in that: described acceleration transducer (11) can be arranged on the end planetary stage (4) that slows down, slow down in end parallel stage (3), speedup end planetary stage (6), speedup end parallel stage (7).
8. aerogenerator gear failure simulation device according to claim 7, it is characterized in that: described speedup end planetary stage (6) is by planetary gear, sun gear, gear ring and system framework, and described speedup end parallel stage (7) is comprised of two pairs of fixed axis gears.
9. aerogenerator gear failure simulation device according to claim 7, it is characterized in that: described deceleration end planetary stage (6) is by planetary gear, sun gear, gear ring and system framework, and described deceleration end parallel stage (7) is comprised of two pairs of fixed axis gears.
10. aerogenerator gear failure simulation device according to claim 8 or claim 9, is characterized in that: its using method is as follows:
1) by the various gears in the end planetary stage (4) that slows down, slow down end parallel stage (3), speedup end planetary stage (6), speedup end parallel stage (7) are used with spot corrosion, peel off, the gear of crackle, broken teeth problem replaces, and realized the simulation of various gear defects on aerogenerator impact in practical work process;
2) control to end parallel stage (3) the gear case speed of slowing down by frequency converter (1) and variable-frequency motor (2), has realized the simulation of various wind speed on aerogenerator impact in practical work process;
3), by frequency converter (1) and the control of loading motor (8) to speedup end parallel stage (7) gear case load, realized various wind in practical work process and carried the simulation on aerogenerator impact;
4) by being arranged on the acceleration transducer (11) that slows down end planetary stage (4), slows down in end parallel stage (3), speedup end planetary stage (6), speedup end parallel stage (7), realize the automatic collection of acceleration signal, and by data-analyzing machine accurate judgement and the location to the various faults of aerogenerator.
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| CN201310631053.9A CN103604604A (en) | 2013-12-02 | 2013-12-02 | Device for fault simulation of gear transmission case of wind turbine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103837342A (en) * | 2014-03-07 | 2014-06-04 | 北京林业大学 | Diagnosing experiment platform for non-linear vibration fault of gears |
| CN104596764A (en) * | 2015-02-02 | 2015-05-06 | 华北电力大学 | Fault diagnosing and predicating test device for epicyclic gearbox |
| CN104729851A (en) * | 2015-03-12 | 2015-06-24 | 清华大学 | Simulation and test device for complex working condition of wind turbine planet gear |
| CN105242208A (en) * | 2015-10-27 | 2016-01-13 | 国家海洋技术中心 | Tidal current power generation indoor simulation test device |
| CN106053056A (en) * | 2016-06-03 | 2016-10-26 | 中国矿业大学 | Novel comprehensive experimental platform for fault diagnosis of wind turbine drive system |
| CN107036814A (en) * | 2017-06-06 | 2017-08-11 | 青岛科技大学 | Close energy-saving type parallel axes column gear transmission testing stand |
| CN108278357A (en) * | 2018-03-01 | 2018-07-13 | 江苏恒立液压科技有限公司 | Gearbox drive system |
| CN109458307A (en) * | 2018-12-21 | 2019-03-12 | 沈阳航空航天大学 | A kind of wind energy conversion system pneumatic efficiency and system generating efficiency synchronous measuring apparatus and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837342A (en) * | 2014-03-07 | 2014-06-04 | 北京林业大学 | Diagnosing experiment platform for non-linear vibration fault of gears |
| CN104596764A (en) * | 2015-02-02 | 2015-05-06 | 华北电力大学 | Fault diagnosing and predicating test device for epicyclic gearbox |
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| CN104729851A (en) * | 2015-03-12 | 2015-06-24 | 清华大学 | Simulation and test device for complex working condition of wind turbine planet gear |
| CN104729851B (en) * | 2015-03-12 | 2017-04-05 | 清华大学 | A kind of simulation of wind energy conversion system planetary gear complex working condition and test device |
| CN105242208B (en) * | 2015-10-27 | 2018-07-27 | 国家海洋技术中心 | A kind of marine tidal-current energy power generation indoor simulation test device |
| CN105242208A (en) * | 2015-10-27 | 2016-01-13 | 国家海洋技术中心 | Tidal current power generation indoor simulation test device |
| CN106053056B (en) * | 2016-06-03 | 2018-12-11 | 中国矿业大学 | A kind of wind energy conversion system driving unit fault diagnosis novel integrated experiment porch |
| CN106053056A (en) * | 2016-06-03 | 2016-10-26 | 中国矿业大学 | Novel comprehensive experimental platform for fault diagnosis of wind turbine drive system |
| CN107036814A (en) * | 2017-06-06 | 2017-08-11 | 青岛科技大学 | Close energy-saving type parallel axes column gear transmission testing stand |
| CN108278357A (en) * | 2018-03-01 | 2018-07-13 | 江苏恒立液压科技有限公司 | Gearbox drive system |
| CN109458307A (en) * | 2018-12-21 | 2019-03-12 | 沈阳航空航天大学 | A kind of wind energy conversion system pneumatic efficiency and system generating efficiency synchronous measuring apparatus and method |
| CN109458307B (en) * | 2018-12-21 | 2023-08-08 | 沈阳航空航天大学 | Synchronous measuring device and method for pneumatic efficiency and system power generation efficiency of wind turbine |
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Application publication date: 20140226 |