CN101825059A - Three-disk cycloid single pitch-controlled speed reducer of wind turbine - Google Patents
Three-disk cycloid single pitch-controlled speed reducer of wind turbine Download PDFInfo
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- CN101825059A CN101825059A CN201010174471A CN201010174471A CN101825059A CN 101825059 A CN101825059 A CN 101825059A CN 201010174471 A CN201010174471 A CN 201010174471A CN 201010174471 A CN201010174471 A CN 201010174471A CN 101825059 A CN101825059 A CN 101825059A
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- pin
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- cycloid
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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
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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Abstract
The invention relates to a three-disk cycloid single pitch-controlled speed reducer of wind turbine, belonging to the technical field of wind power gearbox, wherein: (1) a front frame is jointed with a pin wheel housing and a frame in sequence; (2) a bearing for an input shaft is supported in an inner hole of the front frame and a shaft end is connected with an eccentric bearing; (3) a bearing for an output shaft is supported in an inner of the frame; (4) a gear pin is half-buried in a pinhole of the pin wheel housing with proper burying depth so that the gear pin can not slip off from the pinhole on the pin wheel housing, and a traditional simply-supported gear pin is changed into a half-buried structure; (5) load balancing rings are arranged between two cycloidal gears and on an end part of a pin, a simply-supported structure is achieved, which greatly improves the bending strength of the pin; and (6) the output shaft is loaded with a Che-cup seal is installed in front of a supporting bearing of a low speed stage output shaft for strictly preventing oil leakage. The three-disk cycloid single pitch-controlled speed reducer of a wind turbine has the advantages that (a) the reducer only has single-stage deceleration, has compact structure, light weight, convenient maintenance and short axial size; (b) the bearing capacity of the reducer is larger than that of a reducer which only has three planetary wheels because teeth of cycloid gear teeth and the hypocycloid teeth do not break; (c) the price of a cycloid reducer is less than half of that of a planetary reducer, thus the cost is reduced by 40-55%; and (d) the oil leakage prevention seal of the output shaft has long service life.
Description
[technical field] the present invention relates to wind-powered electricity generation gear-box technical field, a kind of three-disk cycloid single pitch-controlled speed reducer of wind turbine.
[background technique] variable paddle speed reducer is in order to change the blade angle of facining the wind, to make the wind power generating set steady running.Variable paddle speed reducer requires high reliability: bearing capacity very much not broken teeth and output shaft is oil-proof.At present the product and the nation of main body entrance Mitsubishi heavy industry, Italian Bu Laiweini company fly sharp 707T.The subject matter of import variable paddle speed reducer is leakage of oil.Background technique has two kinds:
(A) third-level planetary speed reducer: (1) Nanjing high gear company " Yaw gearbox for wind power generator " (200410064931); (2) Chongqing gear-box company " wind generating variable-propeller reduction gear box " (200720188097); (3) Tianjin speed reducer company " the change oar gear reduction unit that is used for wind-power electricity generation " (200720125070); (4) Chongqing gear-box company " variable paddle speed reducer of band brake " (200820100450); (5) wind-powered electricity generation company " wind generating variable-propeller reduction gear box " (200920116858) advances in Hangzhou;
The problem of third-level planetary is: (a) the slow speed turbine stage planet wheel only has three, and bearing capacity is not high, thereby the lightweight degree is lower; (b) because existing rubber oil sea (except that the Che Shi oil sealing) does not possess the compensation automatically of wearing and tearing back, one wear and tear also can leakage of oil slightly for the twice oil sealing; (c) complex structure, many, the maintenance difficult of part in addition; (d) axial dimension long, heavy, cost an arm and a leg.
(B) bevel gear+secondary planet: the problem of company of ACE Semi (200910034525) is: (a) be still tertiary structure, awl tooth reduction speed ratio i
1=5 (should be i in theory
1≈ 3) the replacement planet is uneconomical, external dimension are big; Is (b) the end face seal oil sealing assorted petty in described " support and oil sealing base mating face are provided with the end face seal oil sealing "? mechanical seal? in this way, great machinery oil sealing price is very high so; It is the skeleton rubber oil sealing? in this way, its leakproof oiliness can be relatively poor.
[summary of the invention] the object of the invention be to provide a kind of bigger than planet bearing capacity, output shaft is oil-proof, axial dimension is short, the three-disk cycloid single pitch-controlled speed reducer of wind turbine of in light weight, easy to maintenance and low cost of manufacture.
Three pieces type: be the cycloid transmission of latest development, Shanghai Communications University, Dalian gear expert has done long-term theoretical research to this.Major advantage: (1) bearing capacity increases by 50%; (2) improve rotary arm bearing; (3) pin tooth and pin stress equalization, stable drive.
Its advantage of involute planetary transmission of three pieces type cycloid velocity ratio is: (a) the single-stage reduction speed ratio is much bigger, can reach 100-150; (b) the cycloid wheel flexural strength is high, we can say never broken teeth; (c) multiple tooth engagement driving is steady, bearing capacity is high; (d) manufacture cost is less than half of NGW planet.Shortcoming: (a) mechanical efficiency of cycloid transmission is lower than the NGW Gear Planet Transmission slightly, but for small-power, this is a minor issue; (b) freely supported structure gear pin flexural strength is lower, because the diameter of needle pin is subjected to curtate ratio K
1, coefficient of gear pin diameter K
2With maximum contact coefficient Y
MaxRestriction.
[technological scheme] the present invention adopts single-stage three pieces type gerotor structure, and its two big technological scheme is as follows:
(A) improve the cycloid anti-impact force: (a) partly bury toothing, make gear pin have very high counter-bending ability; (b) guarantee multiple tooth engagement: cycloid wheel is carried out just equidistant, negative modification of moved distance; With in the silk thread cutting process machined needles alligator hole of being careful, adjacent holes is apart from deviation≤0.01-0.015; (c) in W mechanism, make cantilever become freely-supported with all carrying ring, improved the crooking ability of pin;
(B) effectively prevent leakage of oil: device Che Shi seal ring on the output shaft.Seal ring is made up of O type circle and thin lips and teeth RunddichtringO, has elastic compensating function, long lifetime, the low friction automatically of wearing and tearing back, does not have and leak and anti--55 ℃ of excellent specific properties such as low temperature.
[beneficial effect] contrast background technique, particularly patent (200410064931), its novelty, creativeness and practicability are embodied in: (1) single-stage reduction speed ratio can reach 100-150, compact structure, in light weight, easy to maintenance, axial dimension weak point; (2) cycloidal gear teeth and half imbedding needle pin can not break, thereby have three planet wheel NGW Transmission bearing big than only; (3) existing cycloid price is less than half of planetary reducer, thereby low cost of manufacture 40-55%; (4) output shaft leakproof oil seal long service life.
[description of drawings] Fig. 1. embodiment of the invention structural representation
[embodiment] encyclopaedizes the present invention below in conjunction with accompanying drawing:
With reference to Fig. 1. a kind of three-disk cycloid single pitch-controlled speed reducer of wind turbine is characterized in that:
By support (1), output shaft (3) and block bearing (2), phase angle is that 120 ° three-disk cycloid wheel (5), capacity eccentric bearing (6), pin wheel housing (8), gear pin (13), preceding support (11), input shaft (12) and W output mechanism formed, the W output mechanism comprises pin (10), column sleeve (7) and output shaft (3), wherein:
(A) preceding support (11) connects one with pin wheel housing (8), support (1) successively;
(B) input shaft (12) is bearing in preceding support (11) endoporus with bearing, and the shaft extension end connects capacity eccentric bearing (6);
(C) output shaft (3) is bearing in support (1) endoporus with bearing (2);
(D) gear pin (13) partly is embedded in the upward uniform pin holes of pin wheel housing (8), and it is imbedded the pin-and-hole degree of depth and is as the criterion not skid off from the pin wheel housing pin-and-hole, and traditional freely supported structure gear pin changes into and partly buries toothing, makes gear pin have very high counter-bending ability.
Described three-disk cycloid single pitch-controlled speed reducer of wind turbine, it is characterized in that: between two cycloid wheel (5) and pin (10) end is equipped with and is all carried ring (7), column sleeve (9) is wide with cycloid wheel (5), after tradition cantilever pin is loaded onto and is all carried ring, become freely supported structure, improve the counter-bending ability of pin greatly.
Described three-disk cycloid single pitch-controlled speed reducer of wind turbine, it is characterized in that: the gear pin hole on the slow speed turbine stage pin wheel housing (8) cuts out continous curve by line and obtains, the deviation of the adjacent distance of pin-and-hole is the smaller the better, wire cutting technology can make the deviation≤0.01-0.015 of the adjacent distance of pin-and-hole, roughness is Ra0.5--0.8 μ m, cutting accuracy is ± 0.005mm (being equivalent to grinding), gear pin diameter is the smaller the better, this is the inaccessiable processing effect of any other process for machining, and reduction speed ratio can reach 100-150.
Described three-disk cycloid single pitch-controlled speed reducer of wind turbine is characterized in that: output shaft (3) block bearing (2) is equipped with Che Shi seal ring (4) before, is strictly on guard against leakage of oil.The Che Shi seal ring is made up of O type circle and thin lips and teeth RunddichtringO, have automatic elastic compensating, long lifetime, low friction, do not have leak and excellent specific property such as anti--55 ℃ of low temperature and extensively Ying Yu in space flight, field of petrochemical industry (seeing into big elder generation " mechanical design handbook " volume 2 and the relevant paper of Che Shi sealing for details).
Embodiment is to explanation of the present invention rather than qualification, and the scheme after any simple transformation all belongs to protection scope of the present invention.
Claims (4)
1. three-disk cycloid single pitch-controlled speed reducer of wind turbine is characterized in that:
By support (1), output shaft (3) and block bearing (2), phase angle is that 120 ° three-disk cycloid wheel (5), capacity eccentric bearing (6), pin wheel housing (8), gear pin (13), preceding support (11), input shaft (12) and W output mechanism formed, the W output mechanism comprises pin (10), column sleeve (7) and output shaft (3), wherein:
(A) preceding support (11) connects one with pin wheel housing (8), support (1) successively;
(B) input shaft (12) is bearing in preceding support (11) endoporus with bearing, and the shaft extension end connects capacity eccentric bearing (6);
(C) output shaft (3) is bearing in support (1) endoporus with bearing (2);
(D) gear pin (13) partly is embedded in the upward uniform pin holes of pin wheel housing (8).
2. three-disk cycloid single pitch-controlled speed reducer of wind turbine according to claim 1 is characterized in that: between two cycloid wheel (5) and pin (10) end is equipped with and is all carried ring (7), and column sleeve (9) is wide with cycloid wheel (5).
3. three-disk cycloid single pitch-controlled speed reducer of wind turbine according to claim 2 is characterized in that: the gear pin hole on the slow speed turbine stage pin wheel housing (8) is cut out continous curve by wire cutting machine tool and is obtained.
4. according to claim 2 or 3 described three-disk cycloid single pitch-controlled speed reducer of wind turbine, it is characterized in that: output shaft (3) block bearing (2) is equipped with Che Shi seal ring (4) before.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010174471A CN101825059A (en) | 2010-05-01 | 2010-05-01 | Three-disk cycloid single pitch-controlled speed reducer of wind turbine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010174471A CN101825059A (en) | 2010-05-01 | 2010-05-01 | Three-disk cycloid single pitch-controlled speed reducer of wind turbine |
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| CN101825059A true CN101825059A (en) | 2010-09-08 |
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| CN201010174471A Pending CN101825059A (en) | 2010-05-01 | 2010-05-01 | Three-disk cycloid single pitch-controlled speed reducer of wind turbine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442733A (en) * | 2011-04-02 | 2012-05-09 | 吴小杰 | Large-torque cone-hypocycloid speed reducer of rotary brush aeration machine |
| CN102889339A (en) * | 2011-07-17 | 2013-01-23 | 吴小杰 | Large-size horizontal type cycloid speed reducer |
| CN103032522A (en) * | 2011-10-01 | 2013-04-10 | 吴小杰 | Cycloid pitch-variable gearbox for wind driven generator |
| CN103032278A (en) * | 2011-10-01 | 2013-04-10 | 吴小杰 | Wind-electricity constant braking cycloid pitch-variable gearbox |
| CN103244362A (en) * | 2012-02-09 | 2013-08-14 | 吴小杰 | Wind power constant-braking permanent-magnet yawing-variable-pitch cycloid reduction gearbox |
| CN104696491A (en) * | 2014-06-28 | 2015-06-10 | 吴小杰 | Cabinet interlayer air-cooled high-heat power dynamic balancing hypocycloid reduction box |
| CN104728350A (en) * | 2014-06-28 | 2015-06-24 | 吴小杰 | Box body interlayer water cooling high thermal power dynamic balance hypocycloidal reduction box |
| CN109563810A (en) * | 2016-08-01 | 2019-04-02 | 乌本产权有限公司 | Engine house and rotor and method for wind energy plant |
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| CN2120924U (en) * | 1992-01-02 | 1992-11-04 | 兰州减速机厂 | Heavy load-bearing cycloid pin gear planetary speed reducer |
| CN1288119A (en) * | 1999-09-09 | 2001-03-21 | 吴大乐 | WB type dual supporting points cycloidal reducing gear |
| CN1428521A (en) * | 2001-12-26 | 2003-07-09 | 王庆雨 | Cycloidal speed reducer |
| CN1512088A (en) * | 2002-12-28 | 2004-07-14 | 吴声震 | Elastic uniform load and small tooth number difference speed reducing machine |
| CN2641387Y (en) * | 2003-09-19 | 2004-09-15 | 徐州车氏密封有限公司 | L shape sliding ring type combined sealing |
| CN201288790Y (en) * | 2008-10-13 | 2009-08-12 | 大连交通大学 | Pin gear output needle pendulum planetary transmission decelerator |
| CN101666366A (en) * | 2009-10-12 | 2010-03-10 | 吴声震 | Micro-backflash cycloidal speed reducer of industrial robot |
-
2010
- 2010-05-01 CN CN201010174471A patent/CN101825059A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2120924U (en) * | 1992-01-02 | 1992-11-04 | 兰州减速机厂 | Heavy load-bearing cycloid pin gear planetary speed reducer |
| CN1288119A (en) * | 1999-09-09 | 2001-03-21 | 吴大乐 | WB type dual supporting points cycloidal reducing gear |
| CN1428521A (en) * | 2001-12-26 | 2003-07-09 | 王庆雨 | Cycloidal speed reducer |
| CN1512088A (en) * | 2002-12-28 | 2004-07-14 | 吴声震 | Elastic uniform load and small tooth number difference speed reducing machine |
| CN2641387Y (en) * | 2003-09-19 | 2004-09-15 | 徐州车氏密封有限公司 | L shape sliding ring type combined sealing |
| CN201288790Y (en) * | 2008-10-13 | 2009-08-12 | 大连交通大学 | Pin gear output needle pendulum planetary transmission decelerator |
| CN101666366A (en) * | 2009-10-12 | 2010-03-10 | 吴声震 | Micro-backflash cycloidal speed reducer of industrial robot |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442733A (en) * | 2011-04-02 | 2012-05-09 | 吴小杰 | Large-torque cone-hypocycloid speed reducer of rotary brush aeration machine |
| CN102442733B (en) * | 2011-04-02 | 2013-03-27 | 吴小杰 | Large-torque cone-hypocycloid speed reducer of rotary brush aeration machine |
| CN102889339A (en) * | 2011-07-17 | 2013-01-23 | 吴小杰 | Large-size horizontal type cycloid speed reducer |
| CN102889339B (en) * | 2011-07-17 | 2016-04-27 | 吴小杰 | Large-size horizontal cycloidal reducer |
| CN103032522A (en) * | 2011-10-01 | 2013-04-10 | 吴小杰 | Cycloid pitch-variable gearbox for wind driven generator |
| CN103032278A (en) * | 2011-10-01 | 2013-04-10 | 吴小杰 | Wind-electricity constant braking cycloid pitch-variable gearbox |
| CN103032278B (en) * | 2011-10-01 | 2015-01-07 | 吴小杰 | Wind-electricity constant braking cycloid pitch-variable gearbox |
| CN103244362A (en) * | 2012-02-09 | 2013-08-14 | 吴小杰 | Wind power constant-braking permanent-magnet yawing-variable-pitch cycloid reduction gearbox |
| CN103244362B (en) * | 2012-02-09 | 2015-11-25 | 陈伟 | Wind-powered electricity generation perseverance braking permanent magnetism driftage-pitch cycloid speed reducer |
| CN104696491A (en) * | 2014-06-28 | 2015-06-10 | 吴小杰 | Cabinet interlayer air-cooled high-heat power dynamic balancing hypocycloid reduction box |
| CN104728350A (en) * | 2014-06-28 | 2015-06-24 | 吴小杰 | Box body interlayer water cooling high thermal power dynamic balance hypocycloidal reduction box |
| CN109563810A (en) * | 2016-08-01 | 2019-04-02 | 乌本产权有限公司 | Engine house and rotor and method for wind energy plant |
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Application publication date: 20100908 |