CN102312928A - Spline lubricating structure - Google Patents

Spline lubricating structure Download PDF

Info

Publication number
CN102312928A
CN102312928A CN201110247269A CN201110247269A CN102312928A CN 102312928 A CN102312928 A CN 102312928A CN 201110247269 A CN201110247269 A CN 201110247269A CN 201110247269 A CN201110247269 A CN 201110247269A CN 102312928 A CN102312928 A CN 102312928A
Authority
CN
China
Prior art keywords
spline
oil
splined shaft
lubricating structure
endoporus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201110247269A
Other languages
Chinese (zh)
Inventor
陈冬
赵俊渝
黄永平
白博海
杜木信
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Gearbox Co Ltd
Original Assignee
Chongqing Gearbox Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing Gearbox Co Ltd filed Critical Chongqing Gearbox Co Ltd
Priority to CN201110247269A priority Critical patent/CN102312928A/en
Publication of CN102312928A publication Critical patent/CN102312928A/en
Pending legal-status Critical Current

Links

Abstract

The invention disclose a spline lubricating structure comprising a spline shaft (2) and a spline hub (6) which are matched with each other. The spline lubricating structure is characterized in that the spline shaft (2) is provided with an inner hole (7) and an oil duct (10); and the oil duct (10) is communicated with the inner hole (7) and each tooth socket (2a) of the spline shaft (2). The spline lubricating structure provided by the invention is simple in structure, convenient to process and good in lubricating effect and can be used for providing sufficient lubricating oil for a spline, cooling the lubricating oil better, prolonging the service life of the spline, simultaneously omitting parts such as an oil thrower and the like and simplifying the lubricating oil duct.

Description

The spline lubricating structure
Technical field
The present invention relates to a kind of drive technology field, particularly relate to a kind of lubricating structure of spline.
Background technique
Sun gear spline in the at present domestic wind power generation speed increasing Gear Planet Transmission, what generally adopt is the lubricating fitting shown in the accompanying drawing 11, to sun gear 2 cylindricals, lubricant oil flows to splined end along sun gear 2 cylindricals by supply ring 1 place oil spout.Thisly have a following problem: at first, sun gear 2 has a centrifugal force at the cylindrical place as rotating component in running, and this centrifugal force throws away sun gear 2 with the lubricant oil that flows to spline on sun gear 2 cylindricals easily, can't guarantee the lubricated oil mass that needs of spline.Secondly; The pressing plate 3 that sun gear 2 is played the axially locating effect in work since the variation of load might occur with sun gear 2 splines on position-limited edge situation about killing; Thereby cause lubricant oil to get into the spline teeth groove through the gap between pressing plate 3 and sun gear 2 splines smoothly, the lubricated spline flank of tooth.Once more, sun gear 2 splines can produce heat in work, and the heat of generation is taken away through lubricant oil; And this lubricating structure is because lubricant oil gets into insufficient; And the lubricant oil of external splines is extruded towards two ends along spline tooth because of spline engagement in getting into, and influences the oil-feed of spline front end, can not form effective loop; The heat that produces in the time of can't taking away spline work fully; Also might make the spline flank of tooth produce gummed when serious, thereby cause spline reliability and life-span to be reduced, can not reach the expected design effect.
For general spline structure, its lubricated technical problem that is still difficult solution.Be 200920209784.3 in the patent No., publication number is in the patent document of CN201554786U; A kind of lubricated spline housing of splined shaft that improves is disclosed; Has radially lubricant oil tank filler sleeve; It has a tooth wall portion outer surface circumference equal distribution along spline housing, and is positioned at the spline middle ground, offers the axial lubrication runner that has prescribed depth at least more than two.Axially offering and linking with the bottom of said radially lubricant oil tank filler sleeve of said spline housing has specific length.And radially oily efferent tract, the bottom that it is opened in the substantial middle of axial lubrication runner and is connected to said teeth groove axially offers the axial lubrication groove in the bottom of each spline housing teeth groove along spline housing.In this structure, because lubricant oil gets into adjacent oil groove through extruding in transmission process, so spline is lubricated still undesirable; And; This structure can not effectively be cooled off lubricant oil, and under the situation of splined shaft high speed, high-power transmission, the rate of fault of spline obviously strengthens.
Therefore those skilled in the art are devoted to develop the sufficient spline lubricating structure of a kind of fuel feeding.
Summary of the invention
Because the above-mentioned defective of existing technology, technical problem to be solved by this invention provides the sufficient spline lubricating structure of a kind of fuel feeding.
For realizing above-mentioned purpose, the invention provides a kind of spline lubricating structure, comprise the splined shaft and the spline housing that are fitted to each other; Its key is: said splined shaft is provided with endoporus and oil duct; Said oil duct is communicated with each teeth groove of said endoporus and said splined shaft.
Adopt said structure, can be in the endoporus of splined shaft supplying lubricating oil, lubricant oil directly enters into each teeth groove of spline through oil duct, therefore more abundant to the fuel feeding of spline, lubrication effect is better.
Preferable, said oil duct is a radial hole, its quantity equates with the teeth groove quantity of said splined shaft; The filler opening of each said oil duct all is arranged in the said endoporus, and oil outlet correspondence respectively is arranged on each teeth groove place.
For further improving the fuel feeding effect, be provided with oil trap in the said endoporus of spline; The filler opening of said oil duct is arranged on said oil trap place.
For further improving the fuel feeding effect, said oil trap is an annular groove.
For further improving the fuel feeding effect, said endoporus is positioned at the aperture in said oil trap the place ahead greater than the aperture that is positioned at said oil trap rear.
For further improving the fuel feeding effect, said oil duct is set at least two, and its filler opening is uniformly distributed with along the circumferencial direction of said oil trap.
For further improving the lubrication effect to spline, said spline housing is provided with annular groove; The corresponding said annular groove of said splined shaft and said spline housing place constitutes collection chamber; The oil outlet of said oil duct is arranged on said collection chamber place.
For further improving the lubrication effect to spline, the external diameter at the corresponding said collection chamber of said splined shaft place is less than the external splines tooth root diameter of a circle of said splined shaft.
For further improving the fuel feeding effect, be provided with hollow tubular in the said endoporus; Said hollow tubular is provided with at least one disc.
For the restriction splined shaft moves axially, said splined shaft is positioned at the splined end place and is provided with the pressing plate that is fixedly connected with said spline housing; Said spline housing is provided with the confined planes of the said splined shaft axial motion of restriction; Be oil return preferably, the corresponding said spline of said pressing plate place is provided with oil-return groove.
The invention has the beneficial effects as follows:
(1) the present invention is abundant to the fuel feeding of spline, high lubricating effect;
(2) can cool off preferably lubricant oil, improve the working life of spline;
(3) simple in structure, easy to process;
(4) can save part such as disc, simplify lubricating oil path.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the left TV structure schematic representation of splined shaft among Fig. 1;
Fig. 3 is the structural representation of the embodiment of the invention 2;
Fig. 4 is the structural representation of the embodiment of the invention 3;
Fig. 5 is the partial enlarged drawing at I place among Fig. 4;
Fig. 6 is the structural representation of the embodiment of the invention 4;
Fig. 7 is the partial enlarged drawing at II place among Fig. 6;
Fig. 8 is the partial enlarged drawing at III place among Fig. 6;
Fig. 9 is the structural representation of the embodiment of the invention 4 center platens;
Figure 10 is the A-A sectional view of Fig. 9;
Figure 11 is the structural representation of spline lubricating structure in the existing technology.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
Embodiment 1: as depicted in figs. 1 and 2, a kind of spline lubricating structure is used for the gearbox transmission of roller, comprises the splined shaft 2 and spline housing 6 that are fitted to each other, and splined shaft 2 is provided with endoporus 7 and oilhole radially 10.The quantity of oilhole 10 equates with the teeth groove quantity of splined shaft 2, is uniformly distributed with setting along the circumferencial direction of endoporus 7.The filler opening of each oilhole 10 all is arranged in the endoporus 7, and oil outlet correspondence respectively is arranged on each teeth groove 2a place.
Splined shaft 2 work in rotation movement are injected lubricant oil in endoporus 7, lubricant oil flows to the other end from an end of endoporus 7; Because action of centrifugal force, lubricant oil is dumped in the oilhole 10 when the filler opening of oil-through hole 10; Thereby flow into the teeth groove 2a of splined shaft 2, realize lubricating spline.Because all corresponding teeth groove 2a of each oilhole 10, so each teeth groove all can obtain lubricant oil in time, fully, thereby improves the lubrication effect to spline.As shown in Figure 1, lubricant oil flows into from the right-hand member of teeth groove 2a, and left end flows out, thereby takes away the heat that is produced when spline is worked.
Embodiment 2: as shown in Figure 3, the structure of present embodiment and embodiment 1 are basic identical, and different is that the filler opening place of corresponding oilhole 10 is provided with oil-collecting annular groove 11.
Other structures of present embodiment are identical with embodiment 1 with working principle.Because the setting of oil-collecting annular groove 11, so flow of lubricant is when oil-collecting annular groove 11, will gather at oil-collecting annular groove 11 places to form certain liquid level height, is dumped in the oilhole 10 thereby help lubricant oil, realizes fuel feeding more fully.
Embodiment 3: like Fig. 4 and shown in Figure 5, a kind of spline lubricating structure is used for epicyclic gearbox, comprises the splined shaft 2 and spline housing 6 that are fitted to each other.Splined shaft 2 is provided with endoporus 7, is provided with oil-collecting annular groove 11 in the endoporus 7.Spline housing 6 is provided with annular groove 9, and splined shaft 2 constitutes collection chamber 14 with spline housing 6 corresponding annular grooves 9 places.Splined shaft 2 is provided with three sections oilholes of end-to-end, and the adjacent both ends oilhole is perpendicular to one another, and three sections oilholes constitute oil duct 10.The filler opening of oil duct 10 is arranged on oil-collecting annular groove 11 places, and oil outlet is arranged on collection chamber 14 places.
The working principle of present embodiment and embodiment 2 are basic identical, and different is, owing to have the structure of collection chamber 14 in the present embodiment; Therefore; Need oil duct be set, get final product, can improve the intensity of splined shaft 2 like this and quantity connected set oil ring groove 11 and the oil duct 10 of collection chamber 14 still less can be set at corresponding each teeth groove place; Process more conveniently, and reach essentially identical technique effect.In gear-box, stir lubricant oil in the process of planet wheel motion, thereby lubricant oil is brought in the endoporus 7.After lubricant oil gets into endoporus 7, concentrate, under action of centrifugal force, be dumped in the oil duct 10, get into collection chamber 14 at oil-collecting annular groove 11 places.Because the lubricant oil liquid level height in the collection chamber 14 is higher than the height of spline, and the minimum point of collection chamber is concordant with the spline teeth groove of splined shaft 2, so lubricant oil can get into teeth groove, lubricated spline smoothly.
Embodiment 4: extremely shown in Figure 10 like Fig. 6, and a kind of wind power speed-increasing gear-box sun gear spline lubricating structure, its structure and embodiment 3 are basic identical.Among Fig. 6, arrow is represented the flow path of lubricant oil, in the endoporus 7, is the place ahead with the upper reaches of lubricant oil, and downstream are the rear.
Compare with embodiment 3, in the present embodiment, splined shaft 2 corresponds to sun gear, and spline housing 6 corresponds to female splined shaft.
Different is that endoporus 7 is positioned at the aperture Φ A in oil-collecting annular groove 11 the place aheads greater than the aperture Φ B that is positioned at oil-collecting annular groove 11 rears for the structure of present embodiment and embodiment 3.Therefore, this more helps lubricant oil and assembles at oil-collecting annular groove 11 places, thereby further improves the lubricant oil supply to spline.
In the present embodiment, it is 8 (not shown)s that oil duct 10 is uniformly distributed with along the circumferencial direction of oil-collecting annular groove 11.In other embodiments, oil duct 10 also can be set to other quantity, as 1,2,3,4,5,6,7,9,10 etc., also can uneven cloth setting, and to reach essentially identical technique effect.
In the present embodiment, female splined shaft 6 has a clearance groov 9, and the external diameter at sun gear 2 corresponding clearance groovs 9 places is less than the external splines tooth root diameter of a circle of sun gear 2, and therefore the rearward end at sun gear forms a boss structure 17.Utilize clearance groov 9 and boss structure 17, make sun gear 2 and female splined shaft 6 constitute collection chamber 14 at clearance groov 9 places.Owing to made full use of the clearance groov structure of female splined shaft, so the present embodiment structure is simpler, processes more convenient.
According to the concrete structure of present embodiment gear-box, be provided with hollow tubular 1 in the endoporus 7, be arranged at intervals with two discs 3 on the hollow tubular 1.In other embodiments, disc also can be set to 1,3,4,5 etc., to reach essentially identical technique effect.When the planet wheel in the gear-box stirred into endoporus with lubricant oil, parts of lubricating oil also dropped on the outer surface of hollow tubular, this part lubricant oil in movement process from front to back, run into disc 3 after, by being got rid of, get in the oil trap 11 to the surface of endoporus 7.
Sun gear 2 is positioned at splined end 12 places and is provided with the pressing plate 4 that is connected through bolt 5 with female splined shaft 6, and pressing plate 4 corresponding spline places are provided with oil-return groove 16, and female splined shaft 6 is provided with the confined planes 15 of restriction splined shaft 6 axial motions.
Like Fig. 9 and shown in Figure 10; In the present embodiment, be uniformly distributed with at the circumferencial direction of pressing plate 4 and be provided with 6 oil-return grooves 16, in other embodiments; Satisfying pressing plate shaft under the prerequisite of locating function; The oil-return groove of other quantity also can be set, as 4,5,7,8 etc., to reach essentially identical technique effect.Because the setting of oil-return groove 16 makes pressing plate in to sun gear 2 axially locating, lubricant oil also can flow out than being easier to.
When the gear-box of present embodiment was worked, lubricant oil got rid of in the oil duct 10 under action of centrifugal force; Get into the spline from collection chamber 14, lubricated spline flows out from oil-return groove 16 at last; Get back in the gear-box, also can oil circuit be set separately, make lubricant oil get into other system.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can design according to the present invention make many modifications and variation.Therefore, all technician in the art all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology through the available technological scheme of logical analysis, reasoning, or a limited experiment.

Claims (10)

1. a spline lubricating structure comprises the splined shaft (2) and the spline housing (6) that are fitted to each other; It is characterized in that: said splined shaft (2) is provided with endoporus (7) and oil duct (10); Said oil duct (10) is communicated with each teeth groove (2a) of said endoporus (7) and said splined shaft (2).
2. spline lubricating structure as claimed in claim 1 is characterized in that: said oil duct (10) is a radial hole, and its quantity equates with the teeth groove quantity of said splined shaft (2); The filler opening of each said oil duct (10) all is arranged in the said endoporus (7), and oil outlet correspondence respectively is arranged on each teeth groove (2a) and locates.
3. according to claim 1 or claim 2 spline lubricating structure is characterized in that: be provided with oil trap (11) in the said endoporus (7); The filler opening of said oil duct (10) is arranged on said oil trap (11) and locates.
4. spline lubricating structure as claimed in claim 3 is characterized in that: said oil trap (9) is an annular groove.
5. spline lubricating structure as claimed in claim 4 is characterized in that: said endoporus (7) is positioned at the aperture (Φ A) in said oil trap (11) the place ahead greater than the aperture that is positioned at said oil trap (11) rear (Φ B).
6. spline lubricating structure as claimed in claim 4 is characterized in that: said oil duct (10) is set at least two, and its filler opening is uniformly distributed with along the circumferencial direction of said oil trap (11).
7. spline lubricating structure as claimed in claim 1 is characterized in that: said spline housing (6) is provided with annular groove (9); Said splined shaft (2) and the corresponding said annular groove of said spline housing (6) (9) locate to constitute collection chamber (14); The oil outlet of said oil duct (10) is arranged on said collection chamber (14) and locates.
8. spline lubricating structure as claimed in claim 7 is characterized in that: the external diameter that the corresponding said collection chamber of said splined shaft (2) (9) is located is less than the external splines tooth root diameter of a circle of said splined shaft (2).
9. spline lubricating structure as claimed in claim 1 is characterized in that: be provided with hollow tubular (1) in the said endoporus (7); Said hollow tubular (1) is provided with at least one disc (3).
10. spline lubricating structure as claimed in claim 1 is characterized in that: said splined shaft (2) is positioned at splined end (12) and locates to be provided with the pressing plate (4) that is fixedly connected with said spline housing (6); Said spline housing (6) is provided with the confined planes (15) of restriction said splined shaft (6) axial motion; The corresponding said spline of said pressing plate (4) place is provided with oil-return groove (16).
CN201110247269A 2011-08-24 2011-08-24 Spline lubricating structure Pending CN102312928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110247269A CN102312928A (en) 2011-08-24 2011-08-24 Spline lubricating structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110247269A CN102312928A (en) 2011-08-24 2011-08-24 Spline lubricating structure

Publications (1)

Publication Number Publication Date
CN102312928A true CN102312928A (en) 2012-01-11

Family

ID=45426378

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110247269A Pending CN102312928A (en) 2011-08-24 2011-08-24 Spline lubricating structure

Country Status (1)

Country Link
CN (1) CN102312928A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103244656A (en) * 2013-05-21 2013-08-14 宁波东力新能源装备有限公司 Sun wheel axial fixing structure
CN103671853A (en) * 2012-09-18 2014-03-26 南车戚墅堰机车车辆工艺研究所有限公司 Lubricating structure of rotating spline
CN104930173A (en) * 2015-07-02 2015-09-23 南车戚墅堰机车车辆工艺研究所有限公司 Wind turbine gearbox and lubricating, cooling and flushing structure of spline pair thereof
CN105443591A (en) * 2014-08-18 2016-03-30 沃德(天津)传动有限公司 Torque transmitting assembly
CN105757433A (en) * 2016-04-19 2016-07-13 哈尔滨东安发动机(集团)有限公司 Lubrication structure of spline transfer bar
EP3008355B1 (en) 2013-09-09 2018-01-17 Flender GmbH Planetary gear train for a wind power plant and method
WO2018024761A1 (en) * 2016-08-04 2018-02-08 Siemens Aktiengesellschaft Wind turbine transmission
CN110529425A (en) * 2019-08-16 2019-12-03 中国航发北京航科发动机控制系统科技有限公司 A kind of lubrication system for high revolving speed centrifugal pump

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05231446A (en) * 1992-02-20 1993-09-07 Toyota Autom Loom Works Ltd Wet type multiple disk clutch
JPH08254217A (en) * 1995-03-20 1996-10-01 Matsui Seisakusho:Kk Driving shaft
JP2000145820A (en) * 1998-11-12 2000-05-26 Nsk Warner Kk Wet type multi-disc clutch
CN2407174Y (en) * 1999-11-19 2000-11-22 乐清市联轴器厂 Spline pair for cross axle style universal coupler
CN101144510A (en) * 2007-10-18 2008-03-19 东方电气集团东方汽轮机有限公司 Automatic synchronizing clutch and water supply pump steam turbine high speed jigger device with the same
JP4097497B2 (en) * 2002-10-04 2008-06-11 Tcm株式会社 Lubricating part structure of wet multi-plate hydraulic clutch
CN201166099Y (en) * 2008-03-27 2008-12-17 安徽江淮汽车股份有限公司 Inner gearing planetary gear transmission
CN201554786U (en) * 2009-09-17 2010-08-18 宝山钢铁股份有限公司 Splined hub capable of improving lubricating property of spline shaft

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05231446A (en) * 1992-02-20 1993-09-07 Toyota Autom Loom Works Ltd Wet type multiple disk clutch
JPH08254217A (en) * 1995-03-20 1996-10-01 Matsui Seisakusho:Kk Driving shaft
JP2000145820A (en) * 1998-11-12 2000-05-26 Nsk Warner Kk Wet type multi-disc clutch
CN2407174Y (en) * 1999-11-19 2000-11-22 乐清市联轴器厂 Spline pair for cross axle style universal coupler
JP4097497B2 (en) * 2002-10-04 2008-06-11 Tcm株式会社 Lubricating part structure of wet multi-plate hydraulic clutch
CN101144510A (en) * 2007-10-18 2008-03-19 东方电气集团东方汽轮机有限公司 Automatic synchronizing clutch and water supply pump steam turbine high speed jigger device with the same
CN201166099Y (en) * 2008-03-27 2008-12-17 安徽江淮汽车股份有限公司 Inner gearing planetary gear transmission
CN201554786U (en) * 2009-09-17 2010-08-18 宝山钢铁股份有限公司 Splined hub capable of improving lubricating property of spline shaft

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103671853A (en) * 2012-09-18 2014-03-26 南车戚墅堰机车车辆工艺研究所有限公司 Lubricating structure of rotating spline
CN103671853B (en) * 2012-09-18 2016-04-27 南车戚墅堰机车车辆工艺研究所有限公司 Rotate the lubricating structure of spline
CN103244656B (en) * 2013-05-21 2015-10-28 宁波东力机械制造有限公司 Sun gear axial fixing structure
CN103244656A (en) * 2013-05-21 2013-08-14 宁波东力新能源装备有限公司 Sun wheel axial fixing structure
EP3008355B1 (en) 2013-09-09 2018-01-17 Flender GmbH Planetary gear train for a wind power plant and method
CN105443591A (en) * 2014-08-18 2016-03-30 沃德(天津)传动有限公司 Torque transmitting assembly
CN104930173A (en) * 2015-07-02 2015-09-23 南车戚墅堰机车车辆工艺研究所有限公司 Wind turbine gearbox and lubricating, cooling and flushing structure of spline pair thereof
CN104930173B (en) * 2015-07-02 2017-05-24 中车戚墅堰机车车辆工艺研究所有限公司 Wind turbine gearbox and lubricating, cooling and flushing structure of spline pair thereof
CN105757433A (en) * 2016-04-19 2016-07-13 哈尔滨东安发动机(集团)有限公司 Lubrication structure of spline transfer bar
CN105757433B (en) * 2016-04-19 2018-03-09 哈尔滨东安发动机(集团)有限公司 A kind of lubrication system of spline drived bar
WO2018024761A1 (en) * 2016-08-04 2018-02-08 Siemens Aktiengesellschaft Wind turbine transmission
US11078888B2 (en) 2016-08-04 2021-08-03 Flender Gmbh Wind turbine transmission
CN110529425A (en) * 2019-08-16 2019-12-03 中国航发北京航科发动机控制系统科技有限公司 A kind of lubrication system for high revolving speed centrifugal pump

Similar Documents

Publication Publication Date Title
CN102312928A (en) Spline lubricating structure
CN202203380U (en) Spline lubrication structure of sun gear of wind power speed-increasing gearbox
CN100550579C (en) The method of motor/generator and cooling electro-mechanical transmission
US2935889A (en) Lubrication of transmission clutch disks
WO2020069744A1 (en) Electric drive with cooling capability
CN108869023B (en) Self-lubricating system of power takeoff
CN210196418U (en) Novel heavy multi-gear transmission forced lubrication system
CN106195143B (en) A kind of single duplex countershaft transmission of two grades of pure electric vehicles
CN209430737U (en) A kind of new energy pure electric vehicle reduction gearbox lubricating system
DE102006003213A1 (en) Lubricating oil supplying device, has hollow shaft, within which ladling device is arranged, which protrudes into oil ring rotating in operation of rotary hollow shaft
CN102829165B (en) Planet gear bearing forced lubricating device
CN103016697B (en) A kind of differential lubricating device of improvement
CN105351461A (en) High-reliability cylinder type second-gear planetary wheel gearbox
CN105697730A (en) Gear with efficient cooling structure
CN206072256U (en) A kind of two grades of pure electric vehicles list duplex countershaft transmission
CN209705251U (en) A kind of wind turbine gearbox planet carrier rotation oil supply lubrication device
CN202152844U (en) Planet wheel bearing forced lubrication device
CN109538745A (en) The connection spline lubricating structure of electric commercial vehicle motor and gearbox
CN206802089U (en) A kind of lubrication system of motor
CN104930165A (en) Wind turbine gearbox and sun gear and planet carrier spline pair connection structure thereof
CN202674275U (en) Planet gear lubrication structure of reducer
CN110608283A (en) Needle roller bearing lubricating device and lubricating oil supply regulation and control method
WO2014207476A2 (en) Coupling
CN209557628U (en) The connection spline lubricating structure of electric commercial vehicle motor and gearbox
CN204878651U (en) Fan acceleration rate case and vice draw bail of sun gear and planet carrier spline thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20120111