CN103791039B - Bearing grease lubrication wind-powered electricity generation compound-planetary gearbox - Google Patents
Bearing grease lubrication wind-powered electricity generation compound-planetary gearbox Download PDFInfo
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- CN103791039B CN103791039B CN201210443615.2A CN201210443615A CN103791039B CN 103791039 B CN103791039 B CN 103791039B CN 201210443615 A CN201210443615 A CN 201210443615A CN 103791039 B CN103791039 B CN 103791039B
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
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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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
- F16H37/041—Combinations of toothed gearings only for conveying rotary motion with constant gear ratio
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D15/00—Transmission of mechanical power
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/70—Bearing or lubricating arrangements
-
- 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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- 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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
-
- 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
- F16H57/08—General details of gearing of gearings with members having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/40—Transmission of power
- F05B2260/403—Transmission of power through the shape of the drive components
- F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
- F05B2260/40311—Transmission of power through the shape of the drive components as in toothed gearing of the epicyclic, planetary or differential type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/98—Lubrication
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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
Abstract
The present invention relates to wind turbine gearbox technical field, a kind of bearing grease lubrication wind-powered electricity generation compound-planetary gearbox, including casing, NW planet circular system and dead axle, it is characterized in that: planet carrier two side shaft journal respectively with first, bearing be bearing in front casing and rear box endoporus, clutch shaft bearing both sides have first and second sealing member, the second bearing both sides to have third and fourth sealing member；Planetary gear both sides seal bearing with first, second respectively and are bearing in the cinclides of planet carrier both sides；Final stage drivewheel two ends seal bearing with third and fourth and are bearing in large and small end cap endoporus respectively；Output gear shaft both sides seal bearing with the five, the six and are bearing in large and small end cap endoporus respectively；Sealing bearing is contact radial seal bearing, has single lip and lips two kinds；Sealing member is rotary shaft lip or Che Shi sealing.Beneficial effect: bearing operation is reliable, thus decelerator length in service life, noise are low.
Description
[technical field]
The present invention relates to wind turbine gearbox technical field, a kind of bearing grease lubrication wind-powered electricity generation compound-planetary gearbox, its novelty exists
Rolling bearing bearing grease lubrication, the gear oil forced feed lubrication of gear Meshing Pair in casing.
[background technology]
Gear-box is one of big core technology of Wind turbines three.The domestic wind turbine gearbox having major company senior executive to declare production reaches to defend
Rating level, it is ensured that run well for 20 years.
But " development of wind turbine gearbox and technical Analysis " (machine driving 2008.06) is pointed out: domestic gear-box all runs deficiency
3 years and shut down overhaul.
The present invention is the innovation of following background technology:
" for having the compound-planetary gearbox of the wind turbine of turbo blade and electromotor " (ZL200410056577.0)
(1) gear-box in domestic Wind turbines includes that the problem of background technology is that machine halt trouble rate is high:
" wind-driven generator group wheel box lubricating oil selects guide " points out: " machine halt trouble of domestic Wind turbines 80% is because gear
Case problem, the gear-box probability that breaks down is respectively as follows: bearing 81%, gear 14% ... "
The reason that bearing fault rate is high is assorted petty？1. Modern Machining Center is entirely capable of ensureing the machining accuracy of dead eye, therefore can arrange
Except machining factor；2. designer is used to select than value of calculation a high grade bearing, therefore can get rid of bearing load less than design
Factor；3. gear-box assembler is veteran senior technician mostly, therefore can get rid of gear-box assembling qualitative factor.
(2) " insufficient lubrication is the main cause causing bearing early damage " (Liu Zejiu " rolling bearing application manual " page 891)
" ... bearing initial failure is frequently not the fatigue rupture that material causes, but pollutant lubricate after entering Bearing inner lipid by
Gradual change is bad, produces caused by impression on Structure deformation face." (" Sealing Technology of seal deep groove ball bearing " bearing 2009.05)
Radial ball bearing contact stress σ jmax=5000MPa (р. д. " the rolling bearing handbook " of not prompt Germania page 134) it is tooth
3-4 times of wheel set σ jmax=1450MPa, therefore the cleannes of bearing grease (oily) should be significantly larger than the lubricating oil of gear.
(1) Nanjing High-speed Gear Manufacturing Co., Ltd of largest domestic type wind turbine gearbox enterprise gear expert is in patent of invention
" input of wind-driven generator wheel-box " (201110062373.8) application specification explicitly points out:
The iron filings and the impurity that produce in existing wind-driven generator pitching or Yaw gearbox operating enter in bearing with lubricating oil, directly
Affect gear-box service life ...；
(2) Zhu Xiaolu " Gear Transmission Design handbook " page 94: in power gear transmission, tooth surface due to skimming wear,
Burn into is overheated etc., thus occurs that flank of tooth loss is inevitable；
(3) " maintenance of wind-driven generator group wheel box bearing and maintenance ": " operations staff's boarding has 2mm2 squama in finding cleaner
Lamellar iron filings and a large amount of metal dust；High speed shaft bearing damage backgear displacement, causes planet carrier flank engagement abnormal and damages.”
(4) upper page 103 of Shanghai Machinery College " Fundamentals of Machine Design ": " gear drive equipment is pulled down after using a period of time can
Finding that wear trace occurs in tooth surface, under the conditions of poor in lubrication especially or lubricating oil is impure, wear phenomenon is the brightest
It is aobvious ... abrasion causes with relative slip owing to there being active force between contact surface.”
(5) " magnetic drain plug " (ZL200720131393.5) description is pointed out: during work, due to intermeshing
Often form free iron powder after gear wear, accelerate the abrasion of metal contact surface ...；
(6) " magnetic drain plug in rail traffic vehicle gear box " (201120068109.0) description: produce in gear engagement
Free metal granule is constantly brought into the gear field of conjugate action by lubricating oil, accelerates gear wear, directly affects gear-box service life ...；
(7) " wind power speed-increasing gearbox " (ZL200920112092) description uses magnetic plug to carry out free metal dust in adsorpting lubrication oil；
(8) " transmission mechanism case body lubricant oil iron scurf abrasive grain adsorption plant " (ZL200820083625.9) description: gear is adding
During work, unavoidable band is jagged, and the sliding friction of gear Meshing Pair can produce iron filings abrasive particle ....
(3) bearing grease lubrication (or without additive mineral oil) is required in theory, gear additive lubricating oil:
(a) Liu Zejiu " rolling bearing application manual " page 893: " when the bearing run up or work under high temperature, cannot
When using grease lubrication or when the neighbouring another part (such as gear) of bearing uses oil lubrication, oil lubrication just used by bearing.”
Page 921: " ... the lubrication of rolling bearing is typically with the mineral oil without additive "；
(b) Zhu Xiaolu " Gear Transmission Design handbook " page 1087: be in the gear under boundary lubrication condition, should use containing pole
The lubricating oil of pressure antiwear additive (additive).
SH/T0017-1990 L-FC Grade A bearing oil kinematic viscosity is 90-100；It is that 288-352 is much smaller than gear oil viscosity.
Conclusion: the basic reason that wind turbine gearbox fault rate is high be gear-box operating in produce iron filings and impurity with lubricating oil enter
In bearing, bearing damage causes gear-box to break down and shut down, even if having filter and magnetic plug.
(4) sealing bearing can prevent iron filings and impurity from entering in bearing with lubricating oil, it is ensured that the reliability that gear-box uses.Select
The theoretical foundation sealing bearing is as follows:
1. " Sealing Technology of seal deep groove ball bearing " bearing 2009.05: " seal deep groove ball bearing has antipollution, dust-proof
Angstrom, simplify main machine structure, it is simple to install and the advantage such as maintenance, be widely used in the field such as motor, Aeronautics and Astronautics....
In some matched host machine, the initial failure of bearing is frequently not the fatigue rupture that material causes, but pollutant enter Bearing inner
Rear lubrication lipid gradually degenerates, and produces caused by impression on Structure deformation face.”
2. Liu Ze nine " rolling bearing application manual " page 593: " seal bearing and both can have an excellent sealing lubricant environment, with
Time also save complexity lubricating system.So at compact conformation, the strict position of seal request, all suggestions use and seal bearing.Axle
Hold self seal in addition to there is the most dust-proof, sealing effectiveness, moreover it is possible to do not need to feed lubricant and keep during bearing operation
Good operation state, decreases maintenance cost.”
3. Bu Yan " practical bearing technology handbook " page 95: " at those compact conformations, axial dimension requirement is little, seal request is tight
Lattice, safeguard repairing difficulty, inconvenience use additional seal assemblies place, can preferentially select sealing bearing.”
4. Ai Siman " rolling bearing design and application manual " page 221: " when compact conformation, it is preferred to use close equipped with two sides
The radial ball bearing of envelope.Radial ball bearing equipped with two sides sealing ring has been charged into the grease of the whole useful life of enough bearings.”
Zhu Xiaolu " Gear Transmission Design handbook " page 1096: " gear lubricant and gear and other another parts are the same making of it
With the life-span, the service life of oil product is closely related with applying working condition and maintenance technology again.... general industry gear normal operation 2500h.
Or must change oil for 6 months.”
Liu Zejiu " rolling bearing application manual " page 913 provides Fig. 7-3 bearing and changes fat cycle experience curve, existing for ease of application
Transform it into following fitting formula:
T=1.475 106K-0.9908～1.025 106K-0.8626(h.)
In formula: COEFFICIENT K=Kf·n·Dm(r mm/s) (ball bearing Kf=0.9～1.1), Dm=(D+d)/2, result of calculation: seal
Bearing change fat cycle ＞ 2500 (h.), thus demonstrate and seal bearing and have been charged into the grease of the whole useful life of enough bearings.
Motor n1=1000rpm, NAD:i=6.3, n=158.7rpm, NBD:i=40, n=25rpm change the fat cycle
And for example: ZJ2240 cement ball mill planetary reduction gear: planet wheel bearing 22352:260 × 540 × 165
Thus K=Kf·n·Dm(r mm/s)=1.0 × 43.6 ÷ 60 × 400=290.7
Therefore change the fat cycle and be: T=1.475 106K-0.9908～1.025 106K-0.8626=5346～7688 (h.)
Rotating speed is the lowest, changes the fat cycle the longest.Motor rotor shaft uses sealing bearing exactly.
[summary of the invention]
The bearing grease lubrication wind-powered electricity generation compound-planetary gearbox of a kind of bearing grease lubrication, gear oil lubrication is provided.
[technical scheme]
Planet carrier two side shaft journal is bearing in front casing and rear box endoporus, described clutch shaft bearing both sides with first, second bearing respectively
First, second sealing member, described second bearing both sides is had to have the three, the 4th sealing members；Described planetary gear both sides respectively with first,
Second seals bearing is bearing on planet carrier；Described final stage drivewheel two ends with the three, the 4th seal bearings be bearing in respectively greatly,
Small end cover endoporus；Described output gear shaft both sides seal bearing with the five, the 6th and are bearing in respectively in large and small end cap respective aperture.
[beneficial effect]
Have the technical effect that bearing operation is reliable, thus decelerator length in service life, noise are low.
[accompanying drawing explanation]
Fig. 1. embodiment of the present invention structural representation
[detailed description of the invention]
Below in conjunction with the accompanying drawings the present invention is encyclopaedized:
With reference to Fig. 1. a kind of bearing grease lubrication wind-powered electricity generation compound-planetary gearbox, including casing, NW planet circular system and fixed axis gear
Pair, casing includes front casing 11 and the rear box 10 sequentially coupled, big end cap 14 and small end cover 13, and NW planet circular system includes
Planet carrier 1, ring gear 2, uniform planetary gear axle 3, planetary gear 4 and output sun gear 5, before described ring gear 2 is fastened on
Casing 11 endoporus, described planetary gear 4 is connected on the axle journal of planetary gear axle 3 composition duplicate gear, in duplicate gear
Gear engages with ring gear, and another gear in duplicate gear engages with sun gear, and described fixed axis gear pair includes drivewheel 6
With output gear shaft 7, step-up drive route: drive planetary gear 4 both to revolve round the sun along fixing ring gear 2 when planet carrier 1 rotates
Rotation again, planetary gear 4 drives sun gear 5, sun gear 5 to couple with drivewheel 6 spline, finally by engaging with drivewheel 6
Output gear shaft 7 exports, and pipe axle 12 is in order to fill cable, it is characterised in that:
1 liang of side shaft journal of described planet carrier is bearing in forward and backward casing 11,10 endoporus with first, second bearing 8,9 respectively, the
One bearing 8 both sides have first, second sealing member 81,82, described second bearing 9 both sides to have the three, the 4th sealing members 91,92；
Described planetary gear axle 3 both sides seal bearing 31,32 with first, second respectively and are bearing on planet carrier 1；
Described drivewheel 6 two ends seal bearing 61,62 with the three, the 4th respectively and are bearing in large and small end cap 14,13 endoporus；
Described output gear shaft 7 both sides seal bearing 71,72 with the five, the six respectively and are bearing in large and small end cap 14,13 endoporus；
Sealing bearing is contact radial seal bearing, such as RK or RS or HMS (A) or MHS (A) type, have single lip with
Lips two kinds (Liu Zejiu " rolling bearing application manual " page 593)；
Described sealing member is rotary shaft lip seal or the Che Shi combination sealing being made up of thin lips and teeth shape slip ring+O.
The crown of Che Shi combination sealing profile of tooth slip ring and the surfaces of revolution are bordering on linear contact lay, greatly reduce high speed rotary grinding heat.Slide
Face oil film thick 0.001～0.0025mm, only plays lubrication and unlikely being scraped into drips (leakage), and O makes line contact sealing face
Abrasion is compensated automatically.Che Shi seals: pressure 0～30MPa, operating temperature-55～250 DEG C.Che Shi seals automatic elastic and mends
Repay, long-life, low friction, the extensive Ying Yu of excellent specific property such as No leakage (refer in space flight, metallurgy, field of petrochemical industry
Big first " mechanical design handbook " rolls up 2 and Che Shi sealing correlative theses).
Claims (1)
1. a bearing grease lubrication wind-powered electricity generation compound-planetary gearbox, secondary with fixed axis gear including casing, NW planet circular system, described
Casing includes front casing (11) and the rear box (10) sequentially coupled, big end cap (14) and small end cover (13), described NW
Planet circular system includes planet carrier (1), ring gear (2), uniform planetary gear axle (3), planetary gear (4) and output sun gear (5),
Described ring gear (2) is fastened on front casing (11) endoporus, and described planetary gear (4) is connected in the axle journal of planetary gear axle (3)
Upper composition duplicate gear, a gear in duplicate gear engages with ring gear, another gear in duplicate gear and sun gear
Engagement, described fixed axis gear pair includes drivewheel (6) and output gear shaft (7), step-up drive route: planet carrier (1) rotates
Time drive planetary gear (4) not only to revolve round the sun but also rotation along fixing ring gear (2), planetary gear (4) drives sun gear (5), sun gear
(5) couple with drivewheel (6) spline, finally by output gear shaft (7) output engaged with drivewheel (6), pipe axle (12)
In order to fill cable, it is characterised in that:
Described planet carrier (1) two side shaft journal is bearing in forward and backward casing (11,10) with first, second bearing (8,9) respectively
Endoporus, described clutch shaft bearing (8) both sides have first, second sealing member (81,82), described second bearing (9) both sides to have
Three, the 4th sealing member (91,92)；
Described planetary gear axle (3) both sides seal bearing (31,32) with first, second respectively and are bearing on planet carrier (1)；
Described drivewheel (6) two ends seal bearing (61,62) with the three, the 4th respectively and are bearing in large and small end cap (14,13)
Endoporus；
Described output gear shaft (7) both sides respectively with the five, the 6th seal bearing (71,72) be bearing in large and small end cap (14,
13) endoporus；
Described sealing bearing is contact radial seal bearing, and sealing member is rotary shaft lip seal or Che Shi combination sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210443615.2A CN103791039B (en) | 2012-10-30 | 2012-10-30 | Bearing grease lubrication wind-powered electricity generation compound-planetary gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210443615.2A CN103791039B (en) | 2012-10-30 | 2012-10-30 | Bearing grease lubrication wind-powered electricity generation compound-planetary gearbox |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103791039A CN103791039A (en) | 2014-05-14 |
| CN103791039B true CN103791039B (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210443615.2A Active CN103791039B (en) | 2012-10-30 | 2012-10-30 | Bearing grease lubrication wind-powered electricity generation compound-planetary gearbox |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT517719B1 (en) | 2015-09-15 | 2017-04-15 | Miba Gleitlager Austria Gmbh | Planetary gear for a wind turbine |
| CN105626784B (en) * | 2016-02-16 | 2020-06-12 | 华东交通大学 | Compound uniform-load wind power gear box |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB844901A (en) * | 1957-05-22 | 1960-08-17 | Saviem | An improved epicyclic train |
| JPS62101942A (en) * | 1985-10-28 | 1987-05-12 | Ishikawajima Harima Heavy Ind Co Ltd | Bearing device for double reversing shaft |
| CN1414269A (en) * | 2001-10-26 | 2003-04-30 | 牛连海 | Method for preventing oil leak of pumping unit speed reduction box |
| CN2649869Y (en) * | 2003-09-29 | 2004-10-20 | 重庆齿轮箱有限责任公司 | Planetary-drive wind-power generating speed increasing box |
| CN2916260Y (en) * | 2006-05-31 | 2007-06-27 | 杭州前进齿轮箱集团有限公司 | Speed-increasing gear box for wind driven generator |
| CN201410878Y (en) * | 2009-06-19 | 2010-02-24 | 一拖(洛阳)开创装备科技有限公司 | Final drive gear of enclosed double-bracing planetary gear used in drive axle |
| CN102305276A (en) * | 2011-03-01 | 2012-01-04 | 吴小杰 | Shaft-mounted self-braking quasi-planetary speed reducer for mine hoist |
| CN202030877U (en) * | 2011-04-12 | 2011-11-09 | 东华大学 | Novel double-servo-motor transmission mechanism for detaching rollers of combing machine |
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Effective date of registration: 20181206 Address after: 225400 No. 88 Daqing East Road, Taixing, Taizhou, Jiangsu. Patentee after: Tailong Decelerating Machine Co., Ltd., Jiangsu Address before: 325400 room 761, building 4, Baishi street, Kunyang Town, Pingyang, Zhejiang Patentee before: Wu Xiaojie |