CN202203380U - Spline lubrication structure of sun gear of wind power speed-increasing gearbox - Google Patents

Spline lubrication structure of sun gear of wind power speed-increasing gearbox Download PDF

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Publication number
CN202203380U
CN202203380U CN2011203140547U CN201120314054U CN202203380U CN 202203380 U CN202203380 U CN 202203380U CN 2011203140547 U CN2011203140547 U CN 2011203140547U CN 201120314054 U CN201120314054 U CN 201120314054U CN 202203380 U CN202203380 U CN 202203380U
Authority
CN
China
Prior art keywords
sun gear
spline
wind power
power speed
gear
Prior art date
Application number
CN2011203140547U
Other languages
Chinese (zh)
Inventor
陈冬
赵俊渝
黄永平
白博海
杜木信
Original Assignee
重庆齿轮箱有限责任公司
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Application filed by 重庆齿轮箱有限责任公司 filed Critical 重庆齿轮箱有限责任公司
Priority to CN2011203140547U priority Critical patent/CN202203380U/en
Application granted granted Critical
Publication of CN202203380U publication Critical patent/CN202203380U/en

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    • 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 utility model discloses a spline lubrication structure of a sun gear of a wind power speed-increasing gearbox, comprising the sun gear (2) and a hollow pipe (1) which is arranged in an inner hole (7) of the sun gear (2), wherein the sun gear (2) is provided with an outer spline (8); a spline end (12) of the sun gear (2) is in spline connection with an inner splined shaft (6); the sun gear (2) is provided with a pressure plate (4) which is fixedly connected with the inner splined shaft (6) at the spline end (12); a clearance groove (9) is arranged on the inner splined shaft (6) at one side opposite to the sun gear (2), and the main point of the structure is that the sun gear (2) is provided with an oil hole (10) through which the inner hole (7) is communicated with the clearance groove (9). According to the utility model, the structure is simple, the machining is convenient, sufficient oil is provided to the spline, and the lubrication effect is good; moreover, lubricating oil can be cooled well, thereby prolonging the service life of the spline; simultaneously, parts such as an oil thrower wheel and the like can be saved, thereby simplifying the lubricating oil way.

Description

Wind power speed-increasing gear-box sun gear spline lubricating structure
Technical field
The utility model relates to a kind of wind power speed-increasing gearbox drive technical field, particularly relates in a kind of wind power speed-increasing gear-box Gear Planet Transmission the lubricating structure of sun gear 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 6, 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 spline 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.
Therefore those skilled in the art are devoted to develop the sufficient wind power speed-increasing gear-box of a kind of fuel feeding sun gear spline lubricating structure.
The model utility content
Because the above-mentioned defective of existing technology, the utility model technical problem to be solved provides the sufficient wind power speed-increasing gear-box of a kind of fuel feeding sun gear spline lubricating structure.
Be to realize above-mentioned purpose, the utility model provides a kind of wind power speed-increasing gear-box sun gear spline lubricating structure, comprises the hollow tubular in sun gear and the endoporus that is arranged at said sun gear; Said sun gear is provided with external splines; The splined end of said sun gear is connected with the female splined shaft spline; Said sun gear is positioned at said splined end place and is provided with the pressing plate that is fixedly connected with said female splined shaft; Corresponding said sun gear one side is provided with clearance groov on the said female splined shaft; Its key is: said sun gear is provided with the oilhole that is communicated with said endoporus and said clearance groov.
For improving the fuel feeding effect, be provided with annular groove in the said endoporus; Said oilhole is a straight hole, is arranged on said splined end; One end of said oilhole links to each other with said annular groove, and the other end links to each other with said clearance groov.
For further improving the fuel feeding effect, said endoporus is positioned at the aperture of the aperture in said annular groove the place ahead greater than said annular groove rear.
For further improving the fuel feeding effect, said hollow tubular is provided with at least one disc.
Preferable, be arranged at intervals with two discs on the said hollow tubular.
For further improving the fuel feeding effect, said splined end is provided with boss; The external diameter of said boss is less than the external splines tooth root diameter of a circle of said sun gear.
Be oil return preferably, the corresponding said spline of said pressing plate place is provided with oil-return groove.
The beneficial effect of the utility model is:
(1) the utility model 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 utility model one embodiment;
Fig. 2 is the partial enlarged drawing at I place among Fig. 1;
Fig. 3 is the partial enlarged drawing at II place among Fig. 1;
Fig. 4 is the structural representation of the utility model one embodiment center platen;
Fig. 5 is the A-A sectional view of Fig. 4;
Fig. 6 is the structural representation of spline lubricating structure in the existing technology.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
To shown in Figure 5, among Fig. 1, arrow is represented the flow path of lubricant oil like Fig. 1, in the endoporus 7, is the place ahead with the upper reaches of lubricant oil, and downstream are the rear.A kind of wind power speed-increasing gear-box sun gear spline lubricating structure comprises the hollow tubular 1 in sun gear 2 and the endoporus 7 that is arranged at sun gear 2.Sun gear 2 is provided with external splines 8, and the splined end 12 of sun gear 2 is connected with female splined shaft 6 splines.Sun gear 2 is positioned at splined end 12 places and is provided with the pressing plate 4 that is fixedly connected through bolt 5 with female splined shaft 6, and corresponding sun gear 2 one sides are provided with clearance groov 9 on the female splined shaft 6.
Be provided with oil-collecting annular groove 11 in the endoporus 7, endoporus 7 is positioned at the aperture Φ B of the aperture Φ A in oil-collecting annular groove 11 the place aheads greater than oil-collecting annular groove 11 rears.
Sun gear 2 is provided with the oilhole 10 that is communicated with endoporus 7 and clearance groov 9.Oilhole 10 is a straight hole, is arranged on splined end 12.The filler opening of oilhole 10 links to each other with oil-collecting annular groove 11, and oil outlet links to each other with clearance groov 9.
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.
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 7 with lubricant oil, parts of lubricating oil also dropped on the outer surface of hollow tubular 1, 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.
The splined end 12 of sun gear is provided with boss 13, and the external diameter of boss 13 is less than the external splines tooth root diameter of a circle of sun gear 2.Therefore sun gear 2 constitutes collection chamber 15 with female splined shaft 6 corresponding clearance groovs 9 with boss 13 places.
Pressing plate 4 corresponding spline places are provided with oil-return groove 14.In the present embodiment, be uniformly distributed with at the circumferencial direction of pressing plate 4 and be provided with 6 oil-return grooves 14, 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 14 makes pressing plate in to sun gear 2 axially locating, lubricant oil also can flow out than being easier to.
When gear-box is worked, 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 15 at oil trap 11 places.Because the lubricant oil liquid level height in the collection chamber 15 is higher than the height of spline, and the minimum point of collection chamber is concordant with the spline teeth groove of sun gear 2, so lubricant oil can get into teeth groove, lubricated spline smoothly.Lubricant oil flows out from oil-return groove 14 at last, gets back in the gear-box.
More than describe the preferred embodiment of the utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variation according to the design of the utility model.Therefore, all technician in the art according to the design of the utility model on the basis of existing technology through the available technological scheme of logical analysis, reasoning, or a limited experiment, all should be in determined protection domain by claims.

Claims (7)

1. wind power speed-increasing gear-box sun gear spline lubricating structure comprises sun gear (2) and is arranged at the hollow tubular (1) in the endoporus (7) of said sun gear (2); Said sun gear (2) is provided with external splines (8); The splined end (12) of said sun gear (2) is connected with female splined shaft (6) spline; Said sun gear (2) is positioned at said splined end (12) and locates to be provided with the pressing plate (4) that is fixedly connected with said female splined shaft (6); Said female splined shaft (6) is gone up corresponding said sun gear (2) one sides and is provided with clearance groov (9); It is characterized in that: said sun gear (2) is provided with the oilhole (10) that is communicated with said endoporus (7) and said clearance groov (9).
2. wind power speed-increasing gear-box sun gear spline lubricating structure as claimed in claim 1 is characterized in that: be provided with annular groove (11) in the said endoporus (7); Said oilhole (10) is a straight hole, is arranged on said splined end (12); One end of said oilhole (10) links to each other with said annular groove (11), and the other end links to each other with said clearance groov (9).
3. wind power speed-increasing gear-box sun gear spline lubricating structure as claimed in claim 2 is characterized in that: said endoporus (7) is positioned at the aperture (Φ B) of the aperture (Φ A) in said annular groove (11) the place ahead greater than said annular groove (11) rear.
4. wind power speed-increasing gear-box sun gear spline lubricating structure as claimed in claim 1, it is characterized in that: said hollow tubular (1) is provided with at least one disc (3).
5. wind power speed-increasing gear-box sun gear spline lubricating structure as claimed in claim 4 is characterized in that: be arranged at intervals with two discs (3) on the said hollow tubular (1).
6. wind power speed-increasing gear-box sun gear spline lubricating structure as claimed in claim 1, it is characterized in that: said splined end (12) is provided with boss (13); The external diameter of said boss (13) is less than the external splines tooth root diameter of a circle of said sun gear (2).
7. wind power speed-increasing gear-box sun gear spline lubricating structure as claimed in claim 1 is characterized in that: the corresponding said spline of said pressing plate (4) place is provided with oil-return groove (14).
CN2011203140547U 2011-08-24 2011-08-24 Spline lubrication structure of sun gear of wind power speed-increasing gearbox CN202203380U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203140547U CN202203380U (en) 2011-08-24 2011-08-24 Spline lubrication structure of sun gear of wind power speed-increasing gearbox

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203140547U CN202203380U (en) 2011-08-24 2011-08-24 Spline lubrication structure of sun gear of wind power speed-increasing gearbox

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Publication Number Publication Date
CN202203380U true CN202203380U (en) 2012-04-25

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103335012A (en) * 2013-07-05 2013-10-02 重庆大学 Sun gear shaft of wind power gear box
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
CN103711885A (en) * 2014-01-17 2014-04-09 国电联合动力技术(包头)有限公司 Method for lubricating and cooling spline of wind power gear box
CN106246874A (en) * 2016-08-25 2016-12-21 李健 A kind of rotation platform internal gear interlocking pinion stand
CN111692293A (en) * 2019-03-13 2020-09-22 中国航发湖南动力机械研究所 Speed reducer and lubricating method

Cited By (7)

* 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
CN103335012A (en) * 2013-07-05 2013-10-02 重庆大学 Sun gear shaft of wind power gear box
CN103711885A (en) * 2014-01-17 2014-04-09 国电联合动力技术(包头)有限公司 Method for lubricating and cooling spline of wind power gear box
CN103711885B (en) * 2014-01-17 2016-01-27 国电联合动力技术(包头)有限公司 A kind of wind turbine gearbox spline lubrication cooling means
CN106246874A (en) * 2016-08-25 2016-12-21 李健 A kind of rotation platform internal gear interlocking pinion stand
CN111692293A (en) * 2019-03-13 2020-09-22 中国航发湖南动力机械研究所 Speed reducer and lubricating method

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