CN103066747A - Permanent magnet yawing and variable pitch cycloid reduction box for wind power generation - Google Patents
Permanent magnet yawing and variable pitch cycloid reduction box for wind power generation Download PDFInfo
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- CN103066747A CN103066747A CN2011103358734A CN201110335873A CN103066747A CN 103066747 A CN103066747 A CN 103066747A CN 2011103358734 A CN2011103358734 A CN 2011103358734A CN 201110335873 A CN201110335873 A CN 201110335873A CN 103066747 A CN103066747 A CN 103066747A
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- 238000010248 power generation Methods 0.000 title claims abstract description 17
- 230000005389 magnetism Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 description 9
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
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- 230000005611 electricity Effects 0.000 description 2
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- 238000010438 heat treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The invention relates to the technical field of wind power yawing and variable pitch gearboxes, in particular to a permanent magnet yawing and variable pitch cycloid reduction box for wind power generation. The permanent magnet yawing and variable pitch cycloid reduction box comprises a motor housing, a stator, a permanent magnet, a hollow rotor and a cycloid component. The reduction box is characterized in that two sides of the rotor are respectively supported on a front end cover and an end cover inner hole through bearings, a rotor inner hole is in sliding fit with external splines of an input shaft, and two ends of the input shaft are respectively supported on an output shaft and the end cover inner hole through bearings; and the cycloid component comprises an input shaft upper eccentric bearing, a cycloidal gear, a pin wheel housing, a pin wheel pin and a pin shaft type output mechanism, wherein the output mechanism is composed of the output shaft, a plunger pin, a plunger sleeve and a uniform load ring, the shaft neck of the output shaft is supported on a machine base inner hole through a bearing, and the outer circle of the shaft neck of the uniform load ring is supported on a center hole of the front end cover through a bearing. The permanent magnet yawing and variable pitch cycloid reduction box for the wind power generation has the advantages that load bearing capacity is high, and using is reliable; variable pitch and yawing are the same structure so that the machine model is simplified, and cost is low; the distance in the axial direction is short, and the structure is simple; and the manufacturing cost of the reduction box is about 45%-55% of the manufacturing cost of a reduction box in the prior art.
Description
Technical field
The present invention relates to wind power yawing, variable propeller gearbox technical field, a kind of wind power generation permanent magnetism driftage-pitch cycloid reduction box that can become respectively change oar or yawing speed reducer by changing frequency, number of pole-pairs and cycloid reduction ratio.
Background technology
(1) variable propeller gearbox: 1. Nanjing high gear company " variable propeller gearbox of wind power generator " (ZL200410064931); 2. Chongqing gear box company " wind power generation variable oar reduction gear box " (200720188097); 3. the Tianjin reductor company change oar gear reduction unit of wind power generation " be used for " (200720125070); 4. wind-powered electricity generation company " wind power generation variable oar reduction gear box " (200920116858) advances in Hangzhou; 5. group of ACE Semi " wind-power generating variable-propeller speed reducer " (200910034380).Be the third-level planetary structure, it exists subject matter to be:
(1) existing gear box coefficient of safety is lower, such as BJJSQ1500A type third level planetary gear: S
H=1.21, S
F=1.37, thereby cause early stage spot corrosion when bearing fatigue load.In addition gear hobbing, heat treatment and roll flute stress concentration point tooth root place are prone to microcrack, thereby do not have a high reliability; (2) three planetary gears, overload capacity is not high; (3) axial dimension length, complex structure, price height;
(2) Yaw gearbox: the 1. ZL200410064930 of Nanjing high gear company " wind power generation yaw gearbox "; 2. Chongqing gear company " drift reduction gearbox of power generation " 200620111262; 3. group of ACE Semi " wind-power generating yaw speed reducer " 200910034525; 4. Yinchuan power reductor company " high-power wind power generation yawing speed reducer " 20112065216; 5. Tianjin reductor company " be used for yawing speed reducer for wind power generation " 200820075290; 6. magnificent sharp wind-powered electricity generation scientific ﹠ technical corporation " drift reduction gearbox of power generation " (200820014549) (Pyatyi).Be the level Four planetary structure, it exists subject matter to be:
(1) existing gear box coefficient of safety is lower, easily early stage spot corrosion when bearing fatigue load.In addition gear hobbing, heat treatment and roll flute stress concentration point tooth root place are prone to microcrack, do not have a high reliability;
(2) three planetary gears are only arranged, obviously overload capacity can be too not high;
(3) the level Four planetary reduction gear makes that axial dimension is very long, structure is very complicated, maintenance is very inconvenient, price is very high.
Also have in addition following technology: (1) Tianjin reductor company " for yawing speed reducer for wind power generation " 200320111939.2 is cycloid+secondary planet structure, shortcoming is: Efficiency Decreasing 2 percentage points, two fulcrum needle pin structures of level cycloid at a high speed, thereby overload capacity is low, poor reliability; (2) University Of Chongqing's " a kind of secondary envelope ... " 200920127322.7 is cycloid+gerotor structure, and shortcoming is: Efficiency Decreasing 4 percentage points, two bearings of output shaft go out 2-3 model than routine is large, valency is very high;
Summary of the invention
The object of the invention provides a kind of can become respectively the wind power generation permanent magnetism driftage-pitch cycloid reduction box that becomes oar or yawing speed reducer by changing frequency, number of pole-pairs and cycloid reduction ratio.The two adopts the same structure form, as: n=120rpm when (1) magneto number of pole-pairs p=8,16HZ, single-stage cycloidal i=143 then exports n
2=0.84rpm is used for Yaw gearbox; (2) n=600rpm when magneto number of pole-pairs p=3,30HZ, cycloid i=119 then exports n
2≈ 5.04rpm is used for variable propeller gearbox.
Technical scheme
Technical scheme is very simple: tooth cycloid parts are partly buried in the magneto connection.Can become respectively change oar or yawing speed reducer by changing frequency, number of pole-pairs and cycloid reduction ratio, greatly reduce on the one hand the magneto cost, the aspect is because the cycloid price is low, partly bury never broken teeth and have very large overload capacity, very high reliability of tooth cycloid in addition.The cycloid needle pin partly buries toothing and is mainly used in the industrial robot decelerator, sees Zhu Xiaolu " 828 pages of Gear Transmission Design handbook.
Beneficial effect:
(1) bearing capacity is high, and serviceability is reliable;
(2) become oar or yawing speed reducer and be same structure, simplified type, thereby manufacturing process is unified, cost is low;
(3) axial dimension is short, simple in structure, the process for machining performance is good;
(4) manufacturing cost is about the 45-55% of prior art.
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 generation permanent magnetism driftage-pitch cycloid reduction box, comprise magneto shell (1), motor stator (8), permanent magnet (7) and motor sleeve rotor (6), single-stage cycloidal deceleration component, described motor housing (1) front end connects embedded front end housing (9), described embedded front end housing (9) connects pin wheel housing (10), described pin wheel housing (10) connects support (15), described motor housing (1) rear end connects end cap (21), it is characterized in that:
(A) described motor sleeve rotor (6) one sides are bearing in embedded front end housing (9) endoporus with bearing (2), opposite side is bearing in end cap (21) endoporus with bearing (3), described motor sleeve rotor (6) endoporus and power shaft (5) external splines are slidingly matched, and described power shaft (5) two ends use respectively bearing (17,4) to be bearing in output shaft (14) and end cap (21) endoporus;
(B) described single-stage cycloidal deceleration component comprises the capacity eccentric bearing (12) that is contained on power shaft (5) the shaft extension end, Cycloidal Wheel (11), gear pin (20), pin wheel housing (10) and pin type output mechanism, described gear pin (20) partly is embedded in the pin wheel housing (10), it is a kind of toothing that partly buries, described pin type output mechanism is by output shaft (14), pin (13), column sleeve reaches and all carries ring (18) composition, wherein output shaft (14) axle journal is bearing in support (15) endoporus with bearing (16), all carries ring (18) axle journal cylindrical and is bearing in embedded front end housing (9) centre bore with bearing (19).
Claims (1)
1. wind power generation permanent magnetism driftage-pitch cycloid reduction box, comprise magneto shell (1), motor stator (8), permanent magnet (7) and motor sleeve rotor (6), single-stage cycloidal deceleration component, described motor housing (1) front end connects embedded front end housing (9), described embedded front end housing (9) connects pin wheel housing (10), described pin wheel housing (10) connects support (15), described motor housing (1) rear end connects end cap (21), it is characterized in that:
(A) described motor sleeve rotor (6) one sides are bearing in embedded front end housing (9) endoporus with bearing (2), opposite side is bearing in end cap (21) endoporus with bearing (3), described motor sleeve rotor (6) endoporus and power shaft (5) external splines are slidingly matched, and described power shaft (5) two ends use respectively bearing (17,4) to be bearing in output shaft (14) and end cap (21) endoporus;
(B) described single-stage cycloidal deceleration component comprises the capacity eccentric bearing (12) that is contained on power shaft (5) the shaft extension end, Cycloidal Wheel (11), gear pin (20), pin wheel housing (10) and pin type output mechanism, described gear pin (20) partly is embedded in the pin wheel housing (10), it is a kind of toothing that partly buries, described pin type output mechanism is by output shaft (14), pin (13), column sleeve reaches and all carries ring (18) composition, wherein output shaft (14) axle journal is bearing in support (15) endoporus with bearing (16), all carries ring (18) axle journal cylindrical and is bearing in embedded front end housing (9) centre bore with bearing (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110335873.4A CN103066747B (en) | 2011-10-18 | 2011-10-18 | Permanent magnet yawing and variable pitch cycloid reduction box for wind power generation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110335873.4A CN103066747B (en) | 2011-10-18 | 2011-10-18 | Permanent magnet yawing and variable pitch cycloid reduction box for wind power generation |
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| Publication Number | Publication Date |
|---|---|
| CN103066747A true CN103066747A (en) | 2013-04-24 |
| CN103066747B CN103066747B (en) | 2015-04-08 |
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|---|---|---|---|
| CN201110335873.4A Active CN103066747B (en) | 2011-10-18 | 2011-10-18 | Permanent magnet yawing and variable pitch cycloid reduction box for wind power generation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653950A (en) * | 2018-12-29 | 2019-04-19 | 南京高速齿轮制造有限公司 | Yaw blade pitch device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996011338A1 (en) * | 1994-10-07 | 1996-04-18 | Gerald Hehenberger | Planetary gear for wind turbines |
| CN1236066A (en) * | 1998-07-21 | 1999-11-24 | 平阳减速机总厂 | Axially mounted cycloidal reducer |
| CN1428521A (en) * | 2001-12-26 | 2003-07-09 | 王庆雨 | Cycloidal speed reducer |
| WO2010047065A1 (en) * | 2008-10-22 | 2010-04-29 | ナブテスコ株式会社 | Reduction gear for wind wheel |
| CN101825067A (en) * | 2010-05-01 | 2010-09-08 | 吴声震 | Wind generating cycloidal pitch-controlled speed reducer |
-
2011
- 2011-10-18 CN CN201110335873.4A patent/CN103066747B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996011338A1 (en) * | 1994-10-07 | 1996-04-18 | Gerald Hehenberger | Planetary gear for wind turbines |
| CN1236066A (en) * | 1998-07-21 | 1999-11-24 | 平阳减速机总厂 | Axially mounted cycloidal reducer |
| CN1428521A (en) * | 2001-12-26 | 2003-07-09 | 王庆雨 | Cycloidal speed reducer |
| WO2010047065A1 (en) * | 2008-10-22 | 2010-04-29 | ナブテスコ株式会社 | Reduction gear for wind wheel |
| CN101825067A (en) * | 2010-05-01 | 2010-09-08 | 吴声震 | Wind generating cycloidal pitch-controlled speed reducer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653950A (en) * | 2018-12-29 | 2019-04-19 | 南京高速齿轮制造有限公司 | Yaw blade pitch device |
| CN109653950B (en) * | 2018-12-29 | 2023-08-29 | 南京高速齿轮制造有限公司 | Yaw pitch mechanism |
Also Published As
| Publication number | Publication date |
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| CN103066747B (en) | 2015-04-08 |
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Effective date of registration: 20170505 Address after: 226000, No. 669, Jin Tong Road, Nantong hi tech Zone, Jiangsu, Nantong Patentee after: NANTONG JIEFU ELECTRICAL CO., LTD. Address before: Yueqing City, Zhejiang Province, 325603 white town in Wenzhou City, Tian Yang Road No. 3 Patentee before: Chen Wei |