CN101832239A - Wind power generating single-stage pitch cycloid reducer - Google Patents

Wind power generating single-stage pitch cycloid reducer Download PDF

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Publication number
CN101832239A
CN101832239A CN201010174487A CN201010174487A CN101832239A CN 101832239 A CN101832239 A CN 101832239A CN 201010174487 A CN201010174487 A CN 201010174487A CN 201010174487 A CN201010174487 A CN 201010174487A CN 101832239 A CN101832239 A CN 101832239A
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pin
bearing
cycloid
gear
wind power
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CN201010174487A
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CN101832239B (en
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吴声震
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Jiangsu Tai Tai Heavy Machinery Co., Ltd.
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吴声震
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    • 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
    • F16H1/00Toothed gearings for conveying rotary motion
    • F16H1/28Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32Toothed 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

Abstract

The invention relates to the technical field of wind power gear cases, in particular to a wind power generating single-stage pitch cycloid reducer. The wind power generating single-stage pitch cycloid reducer is characterized in that (1) a front engine base is sequentially connected with a gear pin housing and an engine base into a whole; (2) an input shaft is supported in the inner hole of the front engine base by using a bearing, and the drie end of the input shaft is connected with an eccentric bearing; (3) an output shaft is supported in the inner hole of the engine base by using a bearing; (4) a gear pin is half embedded in the gear pin hole of the gear pin housing, and the gear pin is changed into a half embedded structure from a traditional simply support structure; (5) after uniform loading rings are installed between two cycloid wheels, at the end part of a pin and on a traditional cantilever pin, the simply support structure is formed; and (6) a che's sealing ring is installed in front of the supporting bearing of the output shaft so as to strictly prevent oil leakage. The invention has the advantages that (a) only single-stage speed reduction is adopted so that the axial size is small, the weight is light, and the maintenance is convenient; (b) a cycloid gear and a half-embedded gear can not be broken, thereby the carrying capacity is higher than that of epicyclic transmission only having three planet wheels; (c) the price of the cycloid reducer is less than one half of that of a planet reducer, thereby the cost of the cycloid reducer is reduced by 40-55 percent; and (d) the output shaft can prevent oil leakage and is sealed, thereby having longer service life.

Description

Wind power generating single-stage pitch cycloid reducer
[technical field] the present invention relates to wind-powered electricity generation gear-box technical field, a kind of wind power generating single-stage pitch cycloid reducer.
[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 greatly, broken teeth and output shaft are not 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.
(A) third-level planetary slows down; (B) one-level bevel gear+secondary planet.Background technique has two kinds:
(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) remain tertiary structure, bevel gear replacement planet is uneconomical, external dimension are big; Awl tooth reduction speed ratio i in the specification 1=5.0, " the Gear Transmission Design handbook is pointed out for 922 pages: in the multistage design, the bevel gear wheel diameter is excessive, manufacturing is difficult in order to avoid, and recommends i for Zhu Xiaolu 1≤ 3..If i 1≈ 3 (had better not integral multiple), and i 3≈ 5 (requires third level planet wheel to count n in the specification p=4), second level i then 2≈ 8.5, and reduction speed ratio is obviously excessive; 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 third-level planetary bearing capacity, output shaft is oil-proof, axial dimension is short, the wind power generating single-stage pitch cycloid reducer of in light weight, easy to maintenance and low cost of manufacture.
The planet advantage that cycloid compares is: (a) the single-stage reduction speed ratio is much bigger; (b) the cycloid wheel flexural strength is high, never broken teeth; (c) 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 2Restriction with maximum contact coefficient Ymax.
[technological scheme] two big technological schemes are as follows:
(A) technological scheme of carrying of raising cycloid and impact resistance: (a) toothing is partly buried in employing, makes gear pin have very high counter-bending ability; (b) guarantee multiple tooth engagement: with in the silk thread cutting process machined needles alligator hole of being careful, make its adjacent holes apart from deviation≤0.01-0.015; (c) in the W output mechanism, make the cantilever pin become freely-supported with all carrying ring, improved the crooking ability of pin;
(B) effectively prevent the technological scheme of leakage of oil: device Che Shi seal ring on the output shaft.The Che Shi seal ring is made up of O type circle and thin lips and teeth RunddichtringO, have elastic compensating function, long lifetime, the low friction automatically of wearing and tearing backs, 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 relevant paper).
[beneficial effect] contrasts background technique with the present invention, (200410064931) of patented invention particularly, and its novelty, creativeness and practicability are embodied in: (a) single-stage reduction speed ratio 100-150, axial dimension is short, in light weight, easy to maintenance; (2) cycloidal gear teeth reaches and partly buries not broken teeth of tooth, thereby has the Gear Planet Transmission bearing capacity of three planet wheels big than only; (b) the cycloidal reducer price less than planetary reducer half, thereby the low 40-55% of cost; (c) 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 wind power generating single-stage pitch cycloid reducer is characterized in that:
Form by support (1), output shaft (3) and block bearing (2), cycloid wheel (5), capacity eccentric bearing (6), pin wheel housing (8), gear pin (13), preceding support (11), input shaft (12) and W output mechanism, 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 its degree of depth of imbedding pin-and-hole 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 wind power generating single-stage pitch cycloid reducer, 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 wind power generating single-stage pitch cycloid reducer, it 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, pin-and-hole is adjacent the smaller the better apart from deviation, wire cutting technology can make the deviation≤0.01-0.015 of adjacent distance, surface roughness Ra 0.5--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 wind power generating single-stage pitch cycloid reducer 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, has automatic elastic compensating, long lifetime, low friction, does not have and leak and anti--55 ℃ of excellent specific properties such as low temperature.
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. wind power generating single-stage pitch cycloid reducer is characterized in that:
Form by support (1), output shaft (3) and block bearing (2), cycloid wheel (5), capacity eccentric bearing (6), pin wheel housing (8), gear pin (13), preceding support (11), input shaft (12) and W output mechanism, 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 its 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. wind power generating single-stage pitch cycloid reducer 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. wind power generating single-stage pitch cycloid reducer 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 wind power generating single-stage pitch cycloid reducers, it is characterized in that: output shaft (3) block bearing (2) is equipped with Che Shi seal ring (4) before.
CN201010174487A 2010-05-01 2010-05-01 Wind power generating single-stage pitch cycloid reducer Expired - Fee Related CN101832239B (en)

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CN201010174487A CN101832239B (en) 2010-05-01 2010-05-01 Wind power generating single-stage pitch cycloid reducer

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CN101832239B CN101832239B (en) 2012-10-03

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103032523A (en) * 2011-10-01 2013-04-10 吴小杰 Wind-electricity constant braking hypocycloid pitch-variable gearbox
CN104141742A (en) * 2014-07-15 2014-11-12 江苏泰来减速机有限公司 Air-cooling plastic extruder cycloid reduction gear
CN104141744A (en) * 2014-07-15 2014-11-12 江苏泰来减速机有限公司 Planetary reduction gear of air-cooling plastic extruder
CN104141744B (en) * 2014-07-15 2017-01-04 江苏泰来减速机有限公司 Air-cooled plastic extruder planetary speed reducer

Citations (8)

* Cited by examiner, † Cited by third party
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
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
US7083378B2 (en) * 2002-02-05 2006-08-01 Jae Young Hur Wind generator
DE102006058133A1 (en) * 2006-12-09 2008-06-19 Zf Friedrichshafen Ag Actuator for roll stabilization
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
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
US7083378B2 (en) * 2002-02-05 2006-08-01 Jae Young Hur Wind generator
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
DE102006058133A1 (en) * 2006-12-09 2008-06-19 Zf Friedrichshafen Ag Actuator for roll stabilization
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 (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103032523A (en) * 2011-10-01 2013-04-10 吴小杰 Wind-electricity constant braking hypocycloid pitch-variable gearbox
CN103032523B (en) * 2011-10-01 2015-07-22 陈伟 Wind-electricity constant braking hypocycloid pitch-variable gearbox
CN104141742A (en) * 2014-07-15 2014-11-12 江苏泰来减速机有限公司 Air-cooling plastic extruder cycloid reduction gear
CN104141744A (en) * 2014-07-15 2014-11-12 江苏泰来减速机有限公司 Planetary reduction gear of air-cooling plastic extruder
CN104141744B (en) * 2014-07-15 2017-01-04 江苏泰来减速机有限公司 Air-cooled plastic extruder planetary speed reducer

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Address after: 225419, Taixing village, Zhang Qiao Town, Jiangsu four

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Patentee before: Wu Shengzhen

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Effective date of registration: 20151211

Address after: 225419, Jiangsu, Taizhou City, Taixing Province Zhang Zhen Industrial Agglomeration Area

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Granted publication date: 20121003

Termination date: 20200501