CN104864081A - Wind turbine gearbox lubrication system integrating high-speed shaft emergency protection and bypass filtering - Google Patents
Wind turbine gearbox lubrication system integrating high-speed shaft emergency protection and bypass filtering Download PDFInfo
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- CN104864081A CN104864081A CN201510213592.XA CN201510213592A CN104864081A CN 104864081 A CN104864081 A CN 104864081A CN 201510213592 A CN201510213592 A CN 201510213592A CN 104864081 A CN104864081 A CN 104864081A
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- lubrication system
- lubrication
- filter
- pump group
- gear
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- 238000005461 lubrication Methods 0.000 title claims abstract description 144
- 238000001914 filtration Methods 0.000 title abstract description 9
- 230000001050 lubricating effect Effects 0.000 claims abstract description 51
- 239000000314 lubricant Substances 0.000 claims description 66
- 239000000945 filler Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 98
- 239000010687 lubricating oil Substances 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract 5
- 230000000694 effects Effects 0.000 description 8
- 230000006870 function Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0436—Pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0441—Arrangements of pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2700/00—Transmission housings and mounting of transmission components therein; Cooling; Lubrication; Flexible suspensions, e.g. floating frames
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Wind Motors (AREA)
Abstract
The invention aims to provide a wind turbine gearbox lubrication system integrating high-speed shaft emergency protection and bypass filtering. The wind turbine gearbox lubrication system comprises a first lubricating unit and a second lubricating unit, wherein an oil way orientation control valve is arranged between the first lubricating unit and the second lubricating unit; the first lubricating unit comprises a first filter and a first pumping set; the oil suction opening of the first pumping set is connected with a gearbox, so as to pump lubricating oil in the gearbox to the filter to be distributed to a lubricating point; the second lubricating unit comprises a second filter and a second pumping set; the oil suction opening of the second pumping set is connected with the gearbox, so as to pump in lubricating oil in the gearbox to be filtered through the second filter. According to the wind turbine gearbox lubrication system provided by the invention, the problems that the high-speed shaft of the gearbox is not lubricated easily and easy to damage when the conventional generator set is wholly debugged and the conventional lubrication system pumping set is in failure frequently are solved; meanwhile, the function of bypass fine filtering is integrated.
Description
Technical field
The invention belongs to technical field of wind power generation, be specifically related to a kind of wind turbine gearbox lubrication system gathering high speed shaft emergency protection and by-passing filter.
Background technique
Wind turbine gearbox is the important mechanical part in a wind power generating set, and main function is that the transmission of power that produced under wind-force effect by wind wheel makes it obtain corresponding rotating speed to generator.The rotating speed of usual wind wheel is very low, does not far reach the rotating speed required by electrical power generators, must be realized, therefore also gear-box is referred to as speedup box by the accelerating function of gear-box gear pair.In Large-scale Wind Turbines, gear-box is one of core component in unit.The lubrication of gear-box and the normal work of cooling system play key effect to the working condition of whole generator set and working life.
Lubricant oil is the blood of wind turbine gearbox, normally runs for wind turbine gearbox, has considerable effect.Under normal circumstances, lubricant oil have reduce friction, reduce wearing and tearing, reduce the consumption of power, cooling, antiseptic and rustproof, insulation, power the effect such as conduction, damping, lubrication, sealing.
At present, wind turbine gearbox lubrication system is generally divided into two kinds, and one is electric pump type lubrication system, and another kind is mechanical pump type lubrication system.Prior art, electric pump type lubrication system has the following disadvantages: (1) complete machine is when debug phase and maintenance stage cannot work without power supply, lubrication system, and when there being instantaneous deflection strong wind, fan blade can rotate, although be feathering, do not brake.Now the high speed shaft of gear-box can not get lubrication, very easily damages the high speed shaft of gear-box; (2) motor of electric pump type lubrication system situation about being operationally often damaged, once the motor damage of electric pump type lubrication system, high speed shaft of gearbox can not get lubrication and very easily damages.Mechanical pump type lubrication system has the following disadvantages: (1) complete machine is in debug phase and maintenance stage, when there being instantaneous deflection strong wind, fan blade can rotate, although be feathering, but do not brake, although now mechanical pump meeting oil extraction, oil drain quantity is few, and also will distribute to other not crucial lubricating points, cause extremely flimsy high speed shaft place to can not get enough lubrications, easily make high speed shaft impaired; (2) because of need when the fluid of gear-box exceeds standard shut down or maintenance time start separately lubrication system filtering lubricant oil; and gear-box cannot run debugging mechanical pump type lubrication system when not operating; so mechanical pump type lubrication system is unfavorable for the fault getting rid of main lubrication system, can not when wind-driven generator is shut down filtering lubricant oil.In addition, in order to improve lubricant oil cleaniliness classs, keep lubricant oil to remain unchanged for a long period of time matter, also need in prior art to increase a set of independent by-passing filter system, namely prior art increase rate of fault, turn increase wind-driven generator from loss.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of wind turbine gearbox lubrication system gathering high speed shaft emergency protection and by-passing filter, solve current generator group complete machine out of service time high speed shaft of gearbox be difficult to obtain lubrication, easily impaired, be difficult to the problem of carrying out malfunction elimination and can not filter lubricant oil; Also be integrated with the function of bypass essence filter simultaneously.
For achieving the above object, the technical solution adopted in the present invention is:
A kind of wind turbine gearbox lubrication system gathering high speed shaft emergency protection and by-passing filter, comprise the first lubrication unit and the second lubrication unit, oil circuit strike angle valve is set between described first lubrication unit and the second lubrication unit, described first lubrication unit comprises the first filter and the first pump group, the inlet port of described first pump group is connected with gear-box, first lubrication unit is dispensed to lubricating point after lubricant oil being pumped into the first filter from gear-box by the first pump group, and described lubricating point comprises high speed shaft lubricating point; Described second lubrication unit comprises the second filter and the second pump group, and the inlet port of described second pump group is connected with gear-box, and lubricant oil to be pumped into by the second pump group and filters through the second filter by the second lubrication unit from gear-box; The entry end of described oil circuit strike angle valve is connected with the filter outlet of the second lubrication unit, described oil circuit strike angle valve comprises two outlets, first outlet is connected with gear-box, and the second outlet is connected with the high speed shaft filler opening of the first lubrication unit, and the rear oil duct that is connected is through high speed shaft lubricating point.
Preferably, described second filter is that bypass essence filters filter.
Preferably, described oil circuit strike angle valve is selector valve.
Preferably, described second pump group is mechanical pump group or motor-drive pump group.
Preferably, the second outlet of described high speed shaft lubricating point upper end, oil circuit strike angle valve to be connected with the first lubrication unit on pipeline and to be provided with one-way valve, and described one-way valve controls lubricant oil way and moves towards.
Preferably, oil circuit strike angle valve is adopted to control the connected relation of the first lubrication unit and the second lubrication unit, described oil circuit strike angle valve keep the first lubrication system and the second lubrication system relatively independent time, first pump group of the first lubrication system sucks lubricant oil from gear-box, lubricant oil is transferred and is dispensed to each lubricating point after the first metre filter, second pump group of the second lubrication system sucks lubricant oil from gear-box, and lubricant oil is delivered to gear-box after the second metre filter; When described oil circuit strike angle valve keeps the first lubrication system to be connected with the second lubrication system, the second pump group of the second lubrication system sucks lubricant oil from gear-box, and lubricant oil is transported to high speed shaft lubricating point.
The wind turbine gearbox lubrication system of set high speed shaft emergency protection provided by the invention and by-passing filter, comprise the first lubrication system and the second lubrication system, by oil circuit strike angle valve, the two is connected together, when the first lubrication system is when normally working, first pump group sucks lubricant oil from gear-box, lubricant oil is transported to each lubricating point, second lubrication system switches to self-loopa pattern, second pump group sucks lubricant oil from gear-box, and lubricant oil is delivered to gear-box after the second metre filter; When the first lubrication system quits work, the second lubrication system is connected with the first lubrication system, and the second pump group sucks lubricant oil from gear-box, and lubricant oil is transported to high speed shaft lubricating point after the second metre filter.Wind turbine gearbox lubrication system tool of the present invention has the following advantages: (1) possesses the advantage of mechanical type lubrication system and electric pump type lubrication system simultaneously, has the function of bypass essence filter concurrently, and effectively improves the protective function to high speed shaft; (2) complete machine is in debug phase and maintenance stage, when there being instantaneous deflection strong wind, fan blade can rotate, although be feathering, does not brake, now the second lubrication system is run with gear-box, and crucial high speed shaft lubricating point is all defeated by by lubricant oil by the second pump group; When (3) first lubrication systems break down and quit work, lubricant oil can be defeated by the high speed shaft lubricating point of rapid wear by the second pump group of the second lubricant oil timely in a large number, plays the effect of emergency protection high speed shaft of gearbox; (4) when all systems are all normally run, the lubricant oil sucked from gear-box is delivered to the second filter and filters by the second pump group of the second lubrication system, and the lubricant oil after filtration directly gets back to gear-box, plays the effect of by-passing filter.
Accompanying drawing explanation
Fig. 1 is the structural representation of the wind turbine gearbox lubrication system of set high speed shaft emergency protection of the present invention and by-passing filter.
In figure: 1. the first pump group, 2. the second pump group, 3. oil circuit strike angle valve, 301. first outlets, 302. second outlets, 4. the second filter, 5. gear-box, 6. the first filter, 7. thermostat valve assembly, 8. air-cooled oil heat exchanger, 9. oil path distributor, 10 relief valves, 11. one-way valves, 12. high speed shafts.
Embodiment
Below in conjunction with accompanying drawing, technological scheme of the present invention is further described.
Embodiment 1
As shown in Figure 1, the set high speed shaft emergency protection of the present embodiment and the wind turbine gearbox lubrication system of by-passing filter, comprise the first lubrication unit and the second lubrication unit, and the oil circuit strike angle valve 3 be arranged between the first lubrication unit and the second lubrication unit, described first lubrication unit comprises the first filter 6 and the first pump group 1, the inlet port of the first pump group 1 is connected with gear-box 5, lubricant oil to be pumped into by the first pump group 1 and be dispensed to lubricating point after the first filter 6 by the first lubrication unit from gear-box 5, and described lubricating point comprises high speed shaft lubricating point; Described second lubrication unit comprises the second filter 4 and the second pump group 2, and the inlet port of described second pump group 2 is connected with gear-box 5, and lubricant oil to be pumped into by the second pump group 2 and filters through the second filter 4 by the second lubrication unit from gear-box 5; The entry end of described oil circuit strike angle valve 3 exports with the second filter 4 of the second lubrication unit and is connected, the outlet end of described oil circuit strike angle valve 3 comprises two outlets, first outlet 301 is connected with gear-box 5, second outlet 302 is connected with the oil outlet of the first lubrication unit, and described connected oil circuit is through high speed shaft lubricating point.
In the present embodiment, the oil outlet of the first filter 6 of the first pump group 1 of the first lubrication system is also disposed with thermostat valve assembly 7, air-cooled oil heat exchanger 8 and oil path distributor 9 between lubricating point, and lubricant oil is assigned to the multiple lubricating point places comprising high speed shaft lubricating point through oil path distributor 9.
When first lubrication system normally works, oil circuit strike angle valve 3 automatically switches to the first outlet 301, oil circuit by the second lubrication system is switched to self-loopa state, now, first pump group 1 of the first lubrication system sucks lubricant oil from gear-box 5, a large amount of lubricant oil is transported to lubricating point, particularly high speed shaft lubricating point, can carry out lubricating and protecting to enough lubricant oil; Meanwhile, the second pump group 2 in second lubrication system sucks lubricant oil from gear-box 5, lubricant oil is transported to the second filter 4 and filters, lubricant oil after filtration is directly transferred gets back to gear-box 5, namely the second lubrication system is independently when the first lubrication system normally works, and is responsible for carrying out by-passing filter to lubricant oil.When the first lubrication system quits work; oil circuit strike angle valve 3 automatically switches to the second outlet 302; oil circuit by the second lubrication system is switched to the high speed shaft lubricating point oil circuit communicating state with the first lubrication system; the lubricant oil that second pump group 2 of the second lubrication system sucks is transported to high speed shaft lubricating point after the second filter 4 filters; and lubricant oil is only by high speed shaft lubricating point; the lubricants capacity being now transported to high speed shaft lubricating point is enough large, effectively can protect high speed shaft.
Further, described oil circuit strike angle valve 3 second exports between 302 and high speed shaft lubricating point and is provided with relief valve 10, the outlet end of described relief valve 10 is connected with gear-box 5, and like this, the Excess lubricating oil of high speed shaft lubricating point can flow back in gear-box 5 through relief valve 10.
Optionally, the second filter 4 of described second lubrication unit is that essence filters filter, and filter precision is higher, and filtering effect is better, realizes the function of bypass essence filter system.Described first filter 6 also can select essence to filter filter, provides lubrication oil filtration precision.
Optionally, described oil circuit strike angle valve 3 is selector valve, optional electric change valve or pilot operated directional control valve.
Described lubricating point comprises high speed shaft of gearbox lubricating point, also comprises in other units and needs to lubricate or the position of cooling, as the bearing etc. of planet wheel and sun gear.Lubrication system of the present invention can the crucial moment of the first lubrication system malfunction or particular time make the second lubrication system timely and effectively by distribution of lubrication oil to high speed shaft lubricating point, be specifically related to which lubricant housings, can design according to demand before the manufacture of wind turbine gearbox after drafting and manufacture again.
Described first pump group 1 is motor-drive pump group, also can select mechanical pump group according to the designing requirement of wind turbine gearbox, preferred motor-drive pump group.
Described second pump group 2 is mechanical pump group or motor-drive pump group, is preferably mechanical pump group, still can works in the power-off state.
One-way valve 11 is provided with on the second outlet 302 of described high speed shaft lubricating point upper end, oil circuit strike angle valve 3 to be connected pipeline with the first lubrication unit, described one-way valve 11 controls lubricant oil way trend, and lubricant oil can not be back in the first lubrication unit.That is, when the first lubrication unit normally works, in the first lubrication unit, lubricant oil flows through high speed shaft lubricating point by one-way valve 11, and the second lubrication unit is not communicated with the first lubrication unit, and the second lubrication unit filters lubricant oil as bypass essence filter system; When the first lubrication unit quit work, the second lubrication unit be connected with the first lubrication unit time; in second lubrication unit, lubricant oil flows through high speed shaft lubricating point through the second outlet 302 of oil circuit strike angle valve 3; it is protected; because of the setting of described one-way valve 11, lubricant oil can not be back in the first lubrication unit.
In above-described embodiment, the operation method of wind-powered electricity generation gear lubrication system is, oil circuit strike angle valve 3 is adopted to control the connected relation of the first lubrication unit and the second lubrication unit, when oil circuit is switched to the first outlet 301 by described oil circuit strike angle valve 3, keep the first lubrication unit and the second lubrication unit relatively independent time, first pump group 1 of the first lubrication unit sucks lubricant oil from gear-box 5, lubricant oil is transferred and is dispensed to lubricating point, second pump group 2 of the second lubrication unit sucks lubricant oil from gear-box 5, lubricant oil is delivered to gear-box 5 after the second filter 4 filters, now the second pump group 2 plays the function of by-passing filter, when oil circuit is switched to the second outlet 302 by described oil circuit strike angle valve 3, the first lubrication unit is kept to be connected with the second lubrication unit, second pump group 2 of the second lubrication unit sucks lubricant oil from gear-box 5, and lubricant oil is transported to high speed shaft lubricating point and can not be back in the first lubrication unit, second lubrication unit can carry to high speed shaft 12 lubricants capacity enough played a protective role, and unnecessary lubricant oil can flow back into gear-box 5 from relief valve 10, and now the second pump group 2 plays the effect of emergency protection high speed shaft 12.Described oil circuit strike angle valve 3 is selector valve, optional electric change valve or pilot operated directional control valve.The operation method of lubrication system of the present invention can when the first lubrication unit normally works; second lubrication unit is filtered lubricant oil as bypass essence filter system; when the first lubrication unit does not work timely and effectively to high speed shaft lubricating point conveying lubricant oil, strong effective protective action can be provided to high speed shaft of gearbox 12 again.
Set forth a lot of detail in the above description so that fully understand the present invention.But above description is only preferred embodiment of the present invention, the present invention can be much different from alternate manner described here to implement, and therefore the present invention is not by the disclosed concrete restriction implemented above.Any those skilled in the art are not departing under technical solution of the present invention ambit simultaneously, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (6)
1. gather the wind turbine gearbox lubrication system of high speed shaft emergency protection and by-passing filter for one kind, it is characterized in that, comprise the first lubrication unit and the second lubrication unit, oil circuit strike angle valve is set between described first lubrication unit and the second lubrication unit, described first lubrication unit comprises the first filter and the first pump group, the inlet port of described first pump group is connected with gear-box, first lubrication unit is dispensed to lubricating point after lubricant oil being pumped into the first filter from gear-box by the first pump group, and described lubricating point comprises high speed shaft lubricating point; Described second lubrication unit comprises the second filter and the second pump group, and the inlet port of described second pump group is connected with gear-box, and lubricant oil to be pumped into by the second pump group and filters through the second filter by the second lubrication unit from gear-box; The entry end of described oil circuit strike angle valve is connected with the filter outlet of the second lubrication unit, described oil circuit strike angle valve comprises two outlets, first outlet is connected with gear-box, and the second outlet is connected with the high speed shaft filler opening of the first lubrication unit, and the rear oil duct that is connected is through high speed shaft lubricating point.
2. wind turbine gearbox lubrication system according to claim 1, is characterized in that, described second filter is that bypass essence filters filter.
3. wind turbine gearbox lubrication system according to claim 1, is characterized in that, described oil circuit strike angle valve is selector valve.
4. wind turbine gearbox lubrication system according to claim 1, is characterized in that, described second pump group is mechanical pump group or motor-drive pump group.
5. wind turbine gearbox lubrication system according to claim 1, it is characterized in that, second outlet of described high speed shaft lubricating point upper end, oil circuit strike angle valve to be connected with the first lubrication unit on pipeline and to be provided with one-way valve, and described one-way valve controls lubricant oil way and moves towards.
6. according to the arbitrary described wind turbine gearbox lubrication system of claim 1-5, it is characterized in that, oil circuit strike angle valve is adopted to control the connected relation of the first lubrication unit and the second lubrication unit, described oil circuit strike angle valve keep the first lubrication system and the second lubrication system relatively independent time, first pump group of the first lubrication system sucks lubricant oil from gear-box, lubricant oil is transferred and is dispensed to each lubricating point after the first metre filter, second pump group of the second lubrication system sucks lubricant oil from gear-box, lubricant oil is delivered to gear-box after the second metre filter, when described oil circuit strike angle valve keeps the first lubrication system to be connected with the second lubrication system, the second pump group of the second lubrication system sucks lubricant oil from gear-box, and lubricant oil is transported to high speed shaft lubricating point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510213592.XA CN104864081B (en) | 2015-04-29 | 2015-04-29 | Wind turbine gearbox lubrication system integrating high-speed shaft emergency protection and bypass filtering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510213592.XA CN104864081B (en) | 2015-04-29 | 2015-04-29 | Wind turbine gearbox lubrication system integrating high-speed shaft emergency protection and bypass filtering |
Publications (2)
| Publication Number | Publication Date |
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| CN104864081A true CN104864081A (en) | 2015-08-26 |
| CN104864081B CN104864081B (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510213592.XA Active CN104864081B (en) | 2015-04-29 | 2015-04-29 | Wind turbine gearbox lubrication system integrating high-speed shaft emergency protection and bypass filtering |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812926A (en) * | 2017-02-14 | 2017-06-09 | 西安法士特汽车传动有限公司 | A kind of speed changer pump hydraulic system |
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| CN101196176A (en) * | 2007-12-26 | 2008-06-11 | 二重集团（德阳）重型装备股份有限公司 | Low temperature wind-driven generator speed increasing engine oil lubrication system |
| CN201739100U (en) * | 2010-07-08 | 2011-02-09 | 上海敏泰液压件有限公司 | Gear box lubricating device for wind driven generator |
| CN101979872A (en) * | 2010-10-22 | 2011-02-23 | 大连华锐股份有限公司 | Lubricating system for gear box of wind generating set |
| EP2297461B1 (en) * | 2008-06-02 | 2012-10-03 | Vestas Wind Systems A/S | A lubrication system for a gear system for a wind turbine |
| CN202531810U (en) * | 2012-04-25 | 2012-11-14 | 重庆齿轮箱有限责任公司 | Low-temperature lubricating system for offshore high-power wind power gearbox |
| CN204573053U (en) * | 2015-04-29 | 2015-08-19 | 高先乐 | The wind turbine gearbox lubrication system of set high speed shaft emergency protection and by-passing filter |
-
2015
- 2015-04-29 CN CN201510213592.XA patent/CN104864081B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101196176A (en) * | 2007-12-26 | 2008-06-11 | 二重集团（德阳）重型装备股份有限公司 | Low temperature wind-driven generator speed increasing engine oil lubrication system |
| EP2297461B1 (en) * | 2008-06-02 | 2012-10-03 | Vestas Wind Systems A/S | A lubrication system for a gear system for a wind turbine |
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| CN106812926A (en) * | 2017-02-14 | 2017-06-09 | 西安法士特汽车传动有限公司 | A kind of speed changer pump hydraulic system |
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| CN104864081B (en) | 2017-05-17 |
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