CN104930165B - Blower fan gearbox and its sun gear and planet carrier spline pair draw bail - Google Patents

Blower fan gearbox and its sun gear and planet carrier spline pair draw bail Download PDF

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Publication number
CN104930165B
CN104930165B CN201510380623.0A CN201510380623A CN104930165B CN 104930165 B CN104930165 B CN 104930165B CN 201510380623 A CN201510380623 A CN 201510380623A CN 104930165 B CN104930165 B CN 104930165B
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China
Prior art keywords
sun gear
boss
secondary planet
ring groove
spline section
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CN104930165A (en
Inventor
乐永祥
蔡小亮
阙红波
熊雪梅
文超
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CRRC Qishuyan Institute Co Ltd
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CRRC Qishuyan Institute Co Ltd
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/02Gearboxes; Mounting gearing therein
    • F16H57/023Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/042Guidance of lubricant
    • F16H57/043Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/04Features relating to lubrication or cooling or heating
    • F16H57/048Type of gearings to be lubricated, cooled or heated
    • F16H57/0482Gearings with gears having orbital motion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/08General details of gearing of gearings with members having orbital motion
    • F16H57/082Planet carriers
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Abstract

The invention discloses a kind of blower fan gearbox and its sun gear and planet carrier spline pair draw bail, draw bail includes one-level sun gear, secondary planet frame, protrusive board and rubber sheet gasket, secondary planet frame has internal spline section, one-level sun gear has outer spline section, outer spline section engages to form spline pair with internal spline section, several boss arrangement spaced apart and the upwind end for being respectively positioned on outer spline section, boss is also affixed with the upwind end face of secondary planet frame, rubber sheet gasket is lined between two semi-rings and a complete annulus is formed, first is formed between the axle body of annulus and one-level sun gear and enters oil ring groove, and and axle body, the upwind end face of outer spline section, and oil ring groove is entered in formation second between the upwind end face of secondary planet frame, the boss of one-level sun gear enters in oil ring groove positioned at second;Blower fan gearbox includes casing, primary planet train and secondary planet train.Lubrication effect of the present invention is good, effectively shortens axial space, it is ensured that intensity.

Description

Blower fan gearbox and its sun gear and planet carrier spline pair draw bail
Technical field
The present invention relates to the connection that power between gear for two stage planetary gear train in a kind of blower fan gearbox and its gear drive is transmitted The draw bail of structure, particularly sun gear and planet carrier spline pair.
Background technology
Blower fan gearbox is the precision gear transmission case that a kind of required precision is high, reliability requirement is high.It is wind-power electricity generation An important mechanical part in unit, on the mainframe of fan engine room, for connecting wheel hub main shaft and generator, Its main function is that wind wheel power produced under wind-force effect is passed into generator and it is obtained corresponding rotating speed, is Core apparatus in blower fan, it is necessary to safe and reliable, durable in use, service life typically requires to be 20 years.
Draw bail form in machinery has a variety of, it is common have pin connection, it is thread connection, Flat dey joint, interference fit joint, swollen Set connection, locking plate connection, shaft coupling connection, spline pair connection etc., wherein spline pair connection can transmit relatively high power, and Centering precision is high, and centering and guidance quality are good, and installation and removal are easy.But spline pair connection needs to carry out axial limiting, and There is reliable lubrication to prevent it from occurring excessive wear and gluing, to improve its service life and reliability.
Current high-power blower gearbox with compact structure in order to transmit higher power frequently with multistage NGW planetary gears It is cascaded structure, is coupled with the planet carrier in sun gear and rear stage planetary gear train in previous stage planetary gear train, because too Sun wheel is designed to float so majority couples sun gear and planet carrier using spline pair.The axial dimension of blower fan driving-chain is to whole The layout and economy of individual fan engine room have a significant impact, and blower fan gearbox axial dimension is either still right in itself to gearbox Fan engine room layout be required for it is as compact as possible, so as to improve the economy of gearbox and blower fan.Additionally, due to sun gear Float and require that spline auxiliary connection has more abundant and more reliable lubrication structure.
In China Patent No. CN201110247269.6 and CN201210346227.2 patent of invention, two are each provided Plant blower fan gearbox spline pair draw bail, more particularly to its lubrication system.Spline connection in current blower fan gearbox market Also majority is exactly both schemes to structure.Although this scheme forms effective spline pair draw bail and effective lubricating oil Road, but also all there is respective shortcoming.
For patent No. CN201110247269.6 patent of invention:A. wind direction enters to spline pair under planet carrier Spacing, thus to occupy axial space, mainly annular groove and baffle plate and axial space have between the two been gone more.B. moisten The design of lubricating oil road is complicated, and oil-out space is limited not unobstructed enough.C. it machined on sun gear external splines and planet carrier internal spline Oilhole or oil groove, oil pocket, reduce its static strength and fatigue strength, and then reduce the secondary reliability of spline connection.D. it is oily Road is complicated, and difficulty of processing is high.
For patent No. CN201210346227.2 patent of invention:A. wind direction is carried out to spline pair under planet carrier It is spacing, mainly occupy the axial space of collection chamber and baffle plate and bolt head.B. same lubricant passage way is not easy, Oil-out space is limited not unobstructed enough.C. oilhole or oil equally be machined on sun gear external splines and planet carrier internal spline Groove, oil pocket, reduce its static strength and fatigue strength, and then reduce the secondary reliability of spline connection.D. upwind is used Multiple collection chambers(More than 2, optimal 4)Complete oil suction chamber is not formed, oil-feed and oil storage are insufficient, and lubrication effect is not It is good.E. need to be assembled from the lower wind direction of planet carrier, because of lower wind direction narrow space, installing/dismounting is inconvenient.
The content of the invention
It it is an object of the invention to provide a kind of lubrication effect is good, can effectively shorten the axial space of spline pair, protect The sun gear and planet carrier spline pair draw bail and the blower fan gearbox using this structure of external splines intensity in card.
In order to achieve the above object, the technical scheme is that:A kind of sun gear and planet carrier spline pair draw bail, Including one-level sun gear, secondary planet frame, protrusive board and rubber sheet gasket, the secondary planet frame has internal spline section, the one-level Sun gear has axle body, outer spline section and several boss, the internal spline section engaging of the outer spline section and secondary planet frame Into spline pair, described several boss arrangement spaced apart and the upwind end for being respectively positioned on outer spline section, boss is also with two The upwind end face of level planet carrier is affixed, and the protrusive board is that the semi-ring with L-shaped section and having is lined between two, two semi-rings Rubber sheet gasket simultaneously forms a complete annulus, and the annulus is fixedly connected with the upwind end face of secondary planet frame, annulus and The first axle body, upwind of outer spline section for entering oil ring groove, annulus and one-level sun gear is formed between the axle body of one-level sun gear Second is formed between end face and the upwind end face of secondary planet frame and enters oil ring groove, first, which enters oil ring groove and second, enters oil ring groove Communicate, the boss of the one-level sun gear enters in oil ring groove positioned at second.
The boss is secter pat, has 4-8 and is uniformly distributed along the circumference.
There is deep-slotted chip breaker, deep-slotted chip breaker is located at the upwind end of outer spline section, and the small disc of deep-slotted chip breaker is straight on the boss Footpath is not more than the root diameter of outer spline section, root diameter of the big disc diameter not less than internal spline section of deep-slotted chip breaker.
There is gap, gap is located at the upwind end of outer spline section at the top of the boss.
The boss is welded either glued together or is formed integrally with sun gear with sun gear.
The described first big disc diameter for entering oil ring groove is less than the root diameter of outer spline section, and second enters the big of oil ring groove Disc diameter is more than the root diameter of outer spline section, and second enters width of the axial width at least above boss of oil ring groove 0.5mm。
The protrusive board has 8 ~ 12 connecting holes, and the planet carrier has corresponding screwed hole, and protrusive board is by screw and accordingly Connecting hole, screwed hole coordinate and be fixedly connected with the upwind end face of planet carrier.
Present invention also offers a kind of blower fan gearbox for applying this sun gear and planet carrier spline pair draw bail.
The blower fan gearbox is in order to reach speedup purpose, including at least gear for two stage planetary gear train, while being designed in gearbox There is oil lubrication.
The first order planetary gear train comprises at least sun gear, planet carrier, planetary gear, gear ring.
The sun is designed to float to play effect of load balancing mechanism.
The second level planetary gear train comprises at least planet carrier, planetary gear, sun gear, gear ring
The first order planetary gear train sun gear and second level planetary gear train planet carrier are coupled using the structure of the present invention.
A kind of blower fan gearbox of sun gear and planet carrier spline pair draw bail described in use any of the above-described, including Casing, primary planet train and secondary planet train, the primary planet train include one-level sun gear, primary planet carrier, one Level planetary gear and primary annulus, the secondary planet train include secondary solar gear, secondary planet frame, secondary planet wheel and two grades Gear ring, the one-level sun gear is coupled with secondary planet frame by spline pair, in addition to protrusive board and rubber sheet gasket, two grades of rows Carrier has internal spline section, and the one-level sun gear has axle body, outer spline section and several boss, the outer spline section and two The internal spline section engagement of level planet carrier forms spline pair, and several described boss are spaced apart to be arranged and be respectively positioned on external splines The upwind end of section, boss is also affixed with the upwind end face of secondary planet frame, the protrusive board be the semi-ring with L-shaped section and Have and rubber sheet gasket is lined between two, two semi-rings and a complete annulus is formed, the annulus is upper with secondary planet frame Wind direction end face is fixedly connected, and first is formed between the axle body of annulus and one-level sun gear and enters oil ring groove, annulus and one-level sun gear Axle body, the upwind end face of outer spline section and the upwind end face of secondary planet frame between formed and second enter oil ring groove, first Enter oil ring groove and enter oil ring groove with second to communicate, the boss of the one-level sun gear enters in oil ring groove positioned at second.
The secondary planet train is connected three-level parallel stage gear again.
After said structure, oil ring groove is entered due to forming first between annulus and the axle body of sun gear, annulus with too Second, which is formed, between axle body, the upwind end face of outer spline section and the upwind end face of planet carrier of sun wheel enters oil ring groove, first Enter oil ring groove and enter oil ring groove with second to communicate, the boss of the sun gear enters in oil ring groove positioned at second, the lower wind direction of spline pair There is no any spacing and feature, form open circuit, lubrication effect is good;Due to eliminating oil of the prior art The structure such as groove or oil pocket, baffle plate, bolt, effectively shortens the axial space between spline pair, makes blower fan gearbox axial dimension more It is compact;The features such as oilhole, oil groove, oil pocket need not be increased on the sun gear for carrying main moment of torsion, it is ensured that interior external splines intensity. In addition, the present invention is simple in construction, manufacture difficulty is low, easy installation and removal, and whole spline pair reliability is high.
Brief description of the drawings
The present invention is further detailed explanation for the embodiment provided below in conjunction with accompanying drawing.
Fig. 1 is the blower fan gearbox inner sun wheel of the present invention and the structural representation of planet carrier spline pair draw bail;
Fig. 2 is Fig. 1 local form's figure;
Fig. 3 is the structural representation of the sun gear in Fig. 1;
Fig. 4 is Fig. 3 A-A sectional views;
Fig. 5 is Fig. 3 stereogram;
Fig. 6 is the structural representation of the boss in Fig. 3;
Fig. 7 is Fig. 6 right view;
Fig. 8, Fig. 9 are another structural representations of the boss in the present invention;
Figure 10 is the structural representation of the protrusive board in the present invention;
Figure 11 is Figure 10 stereogram;
Figure 12 is the stereogram of the rubber sheet gasket in the present invention;
Figure 13 is the shape assumption diagram of the blower fan gearbox of the present invention;
Figure 14 is Figure 13 left view.
Figure 15 is Figure 13 interior section structural representation.
Embodiment
As shown in figs. 1-12, sun gear of the invention and planet carrier spline pair draw bail, including one-level sun gear 1, two Level planet carrier 2, protrusive board 3 and rubber sheet gasket 4, the secondary planet frame 2 have internal spline section 2-1, and the one-level sun gear 1 has Axle body 1-1, outer spline section 1-2 and several boss 6, the outer spline section 1-2 and secondary planet frame 2 internal spline section 2-1 are nibbled Conjunction forms spline pair, several boss 6 arrangement spaced apart and the upwind end for being respectively positioned on outer spline section 1-2, convex Platform 6 is also affixed with the upwind end face of secondary planet frame 2, and the protrusive board 3 is the semi-ring with L-shaped section and has two, two Rubber sheet gasket 4 is lined between semi-ring and a complete annulus is formed, the upwind end face of the annulus and secondary planet frame 2 is consolidated Fixed connection, forms first and enters oil ring groove 5, the axle of annulus and one-level sun gear 1 between annulus and the axle body 1-1 of one-level sun gear 1 Second is formed between body 1-1, outer spline section 1-2 upwind end face and secondary planet frame 2 upwind end face and enters oil ring groove 7, First, which enters oil ring groove 5, enters oil ring groove 7 with second and communicates, and the boss 6 of the one-level sun gear 1 enters in oil ring groove 7 positioned at second.
As shown in Fig. 1,3,4,5,6,7, the boss 6 is secter pat, has 4-8 and is uniformly distributed along the circumference.
As shown in Fig. 1,3,5,6,7, there is deep-slotted chip breaker 6-1, deep-slotted chip breaker 6-1 to be located at outer spline section 1-2's on the boss 6 At upwind end, deep-slotted chip breaker 6-1 small disc diameter is not more than outer spline section 1-2 root diameter, deep-slotted chip breaker 6-1 great circle Root diameter of the face diameter not less than internal spline section 2-1.
As shown in Figure 8,9, it would however also be possible to employ the boss 6 of other structures, for example, the top of boss 6 has gap 6-2, gap 6-2 is located at outer spline section 1-2 upwind end.As long as the structure of boss 6 can make lubricating oil enter oil ring groove 5, by first Two, which enter oil ring groove 7, lubricates spline pair near boss.
As shown in Fig. 3,4,5, the boss 6 and one-level sun gear 1 weld it is either glued together or with the one-level sun Wheel 1 is formed integrally.
As shown in figure 1, the described first big disc diameter for entering oil ring groove 5 is less than outer spline section 1-2 root diameter, the The two big disc diameters for entering oil ring groove 7 are more than outer spline section 1-2 root diameter, and second enters the axial width of oil ring groove 7 extremely It is more than the width 0.5mm of boss 6 less.
As shown in Fig. 1,10,11, the protrusive board 3 has 8 ~ 12 connecting hole 3-1, and the secondary planet frame 2 has accordingly Screwed hole 2-2, protrusive board 3 by screw 8 and corresponding connecting hole 3-1, screwed hole 2-2 coordinate and with the windward of secondary planet frame 2 It is fixedly connected to end face.
As shown in figure 1, the present invention in use, lubricating oil from first enter oil ring groove 5, second enter oil ring groove 7 enter after pass through Spline pair is flowed directly out, and lubrication effect, the double-head arrow dotted line signal that lubricating oil flow direction is shown in Fig. 1 are played to spline pair.
As shown in Figure 13,14,15, sun gear and planet carrier spline pair draw bail described in a kind of use any of the above-described Blower fan gearbox, including casing 15, primary planet train and secondary planet train, the primary planet train includes one-level too Sun wheel 1, primary planet carrier 9, primary planet wheel 10 and primary annulus 11, the secondary planet train include secondary solar gear 14, Secondary planet frame 2, secondary planet wheel 12 and secondary gear circle 13, the one-level sun gear 1 pass through spline duplicate invoice with secondary planet frame 2 Connect, in addition to protrusive board 3 and rubber sheet gasket 4, the secondary planet frame 2 has internal spline section 2-1, the one-level sun gear 1 has Axle body 1-1, outer spline section 1-2 and several boss 6, the outer spline section 1-2 and secondary planet frame 2 internal spline section 2-1 are nibbled Conjunction forms spline pair, several boss 6 arrangement spaced apart and the upwind end for being respectively positioned on outer spline section 1-2, convex Platform 6 is also affixed with the upwind end face of secondary planet frame 2, and the protrusive board 3 is the semi-ring with L-shaped section and has two, two Rubber sheet gasket 4 is lined between semi-ring and a complete annulus is formed, the upwind end face of the annulus and secondary planet frame 2 is consolidated Fixed connection, forms first and enters oil ring groove 5, the axle of annulus and one-level sun gear 1 between annulus and the axle body 1-1 of one-level sun gear 1 Second is formed between body 1-1, outer spline section 1-2 upwind end face and secondary planet frame 2 upwind end face and enters oil ring groove 7, First, which enters oil ring groove 5, enters oil ring groove 7 with second and communicates, and the boss 6 of the one-level sun gear 1 enters in oil ring groove 7 positioned at second.
As shown in figure 15, the secondary planet train is connected three-level parallel stage gear again.
As shown in figure 15, during blower fan gearbox of the invention operating, blower fan main shaft drives primary planet carrier 9 to rotate, one-level Planet carrier 9 drives primary planet wheel 10 attached thereto, primary planet wheel 10 respectively with primary annulus 11, one-level sun gear 1, which forms interior external toothing, drives one-level sun gear 1 to rotate, and one-level sun gear 1 passes through spline pair 1-2,2-1 and drives secondary planet frame 2 Rotation, secondary planet frame 2 drives secondary planet wheel 12 attached thereto, secondary planet wheel 12 respectively with secondary gear circle 13, Secondary solar gear 14 forms interior external toothing and drives secondary solar gear 14 to rotate, then drives three-level parallel stage by secondary solar gear 14 Gear pair, forms three-level speedup.Wherein a gear ring 11, secondary gear circle 13 are connected with casing 15.Lubricating oil flow direction is shown in Fig. 1 Double-head arrow dotted line is illustrated.

Claims (9)

1. a kind of sun gear and planet carrier spline pair draw bail, it is characterised in that:
A including one-level sun gear(1), secondary planet frame(2), protrusive board(3)And rubber sheet gasket(4),
B, the secondary planet frame(2)With internal spline section(2-1),
C, the one-level sun gear(1)With axle body(1-1), outer spline section(1-2)With several boss(6), the external splines Section(1-2)With secondary planet frame(2)Internal spline section(2-1)Engagement forms spline pair, several described boss(6)Interval is certain Distance is arranged and is respectively positioned on outer spline section(1-2)Upwind end, boss(6)Also with secondary planet frame(2)Upwind end face It is affixed,
D, the protrusive board(3)For the semi-ring with L-shaped section and have and be lined with rubber sheet gasket between two, two semi-rings(4)And shape Into a complete annulus, the annulus and secondary planet frame(2)Upwind end face be fixedly connected, annulus and one-level sun gear (1)Axle body(1-1)Between formed and first enter oil ring groove(5), annulus and one-level sun gear(1)Axle body(1-1), outer spline section (1-2)Upwind end face and secondary planet frame(2)Upwind end face between formed and second enter oil ring groove(7), the first oil-feed Annular groove(5)Enter oil ring groove with second(7)Communicate,
E, the one-level sun gear(1)Boss(6)Enter oil ring groove positioned at second(7)In.
2. sun gear according to claim 1 and planet carrier spline pair draw bail, it is characterised in that:The boss(6) For secter pat, there are 4-8 and be uniformly distributed along the circumference.
3. sun gear according to claim 1 and planet carrier spline pair draw bail, it is characterised in that:The boss(6) It is upper that there is deep-slotted chip breaker(6-1), deep-slotted chip breaker(6-1)Positioned at outer spline section(1-2)Upwind end at, deep-slotted chip breaker(6-1)Roundlet Face diameter is not more than outer spline section(1-2)Root diameter, deep-slotted chip breaker(6-1)Big disc diameter not less than internal spline section (2-1)Root diameter.
4. sun gear according to claim 1 and planet carrier spline pair draw bail, it is characterised in that:The boss(6) Top has gap(6-2), gap(6-2)Positioned at outer spline section(1-2)Upwind end at.
5. sun gear according to claim 1 and planet carrier spline pair draw bail, it is characterised in that:The boss(6) With sun gear(1)Weld either glued together or and sun gear(1)It is formed integrally.
6. sun gear according to claim 1 and planet carrier spline pair draw bail, it is characterised in that:First oil-feed Annular groove(5)Big disc diameter be less than outer spline section(1-2)Root diameter, second enters oil ring groove(7)Big disc diameter More than outer spline section(1-2)Root diameter, second enters oil ring groove(7)Axial width at least above boss(6)Width 0.5mm。
7. sun gear according to claim 1 and planet carrier spline pair draw bail, it is characterised in that:The protrusive board(3) With 8 ~ 12 connecting holes(3-1), the planet carrier(2)There is corresponding screwed hole(2-2), protrusive board(3)Pass through screw(8)With phase The connecting hole answered(3-1), screwed hole(2-2)Coordinate and and planet carrier(2)Upwind end face be fixedly connected.
8. the blower fan speedup of the sun gear and planet carrier spline pair draw bail described in a kind of use claim any one of 1-7 Case, including casing(15), primary planet train and secondary planet train, the primary planet train includes one-level sun gear(1)、 Primary planet carrier(9), primary planet wheel(10)And primary annulus(11), the secondary planet train include secondary solar gear (14), secondary planet frame(2), secondary planet wheel(12)With secondary gear circle(13), the one-level sun gear(1)With secondary planet frame (2)Coupled by spline pair, it is characterised in that:
A in addition to protrusive board(3)And rubber sheet gasket(4),
B, the secondary planet frame(2)With internal spline section(2-1),
C, the one-level sun gear(1)With axle body(1-1), outer spline section(1-2)With several boss(6), the external splines Section(1-2)With secondary planet frame(2)Internal spline section(2-1)Engagement forms spline pair, several described boss(6)Interval is certain Distance is arranged and is respectively positioned on outer spline section(1-2)Upwind end, boss(6)Also with secondary planet frame(2)Upwind end face It is affixed,
D, the protrusive board(3)For the semi-ring with L-shaped section and have and be lined with rubber sheet gasket between two, two semi-rings(4)And shape Into a complete annulus, the annulus and secondary planet frame(2)Upwind end face be fixedly connected, annulus and one-level sun gear (1)Axle body(1-1)Between formed and first enter oil ring groove(5), annulus and one-level sun gear(1)Axle body(1-1), outer spline section (1-2)Upwind end face and secondary planet frame(2)Upwind end face between formed and second enter oil ring groove(7), the first oil-feed Annular groove(5)Enter oil ring groove with second(7)Communicate,
E, the one-level sun gear(1)Boss(6)Enter oil ring groove positioned at second(7)In.
9. blower fan gearbox according to claim 8, it is characterised in that:The secondary planet train is connected three-level again Parallel stage gear.
CN201510380623.0A 2015-07-02 2015-07-02 Blower fan gearbox and its sun gear and planet carrier spline pair draw bail Active CN104930165B (en)

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CN108895145B (en) * 2018-07-17 2022-03-01 湖南南方宇航高精传动有限公司 Novel wind-powered electricity generation master gear case internal spline structure
FR3092885B1 (en) * 2019-02-20 2021-09-24 Safran Trans Systems SOLAR FOR AN AIRCRAFT TURBOMACHINE MECHANICAL REDUCER
EP3832171A1 (en) * 2019-12-04 2021-06-09 Maxon International AG Method for producing a combination from a solar gear and a planetary carrier, and combination produced according to said method

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JP3522152B2 (en) * 1999-05-25 2004-04-26 ダイハツ工業株式会社 Lubrication structure of planetary gear unit
JP4701587B2 (en) * 2003-06-02 2011-06-15 トヨタ自動車株式会社 Electric drive
CN201367988Y (en) * 2009-02-13 2009-12-23 南京高速齿轮制造有限公司 Speed-increasing gearbox for downwind wind-driven generator
CN202579056U (en) * 2012-05-03 2012-12-05 南京高速齿轮制造有限公司 Speed-increasing gearbox of wind power generator
CN204878651U (en) * 2015-07-02 2015-12-16 南车戚墅堰机车车辆工艺研究所有限公司 Fan acceleration rate case and vice draw bail of sun gear and planet carrier spline thereof

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