CN105465200A - Connecting structure for main shaft and gearbox of horizontal-axis wind turbine unit - Google Patents
Connecting structure for main shaft and gearbox of horizontal-axis wind turbine unit Download PDFInfo
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- CN105465200A CN105465200A CN201410386576.6A CN201410386576A CN105465200A CN 105465200 A CN105465200 A CN 105465200A CN 201410386576 A CN201410386576 A CN 201410386576A CN 105465200 A CN105465200 A CN 105465200A
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- main shaft
- tooth
- gearbox
- gear
- shaft
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Abstract
Provided is a connecting structure for a main shaft and a gearbox of a horizontal-axis wind turbine unit. Straight inner teeth are machined on the main shaft, drum-shaped outer teeth are machined on an input shaft of the gearbox, and torque transfer between the main shaft and the gearbox is achieved through complete engagement of the straight inner teeth and the drum-shaped outer teeth. The positions of the straight inner teeth can interchange with the positions of the drum-shaped outer teeth, and direct gear machining can be replaced by mounting corresponding gears. By the adoption of the flexible connection mode, a small quantity of radial and axial deviation and certain angular deviation of the axis of the main shaft and the axis of the input shaft of the gearbox are allowed. Stress of the main shaft, the gearbox and a main bearing between the main shaft and a main rack is simplified relatively, dynamic additional loads between the components are correspondingly reduced, the design and manufacturing requirements of the main shaft are lowered, the whole driving chain structure is more compact, and the design reliability of a wind turbine is improved. Meanwhile, the fault rate of the gearbox and the main bearing can be reduced, and the service life of the gearbox and the service life of the main bearing are prolonged. In addition, the structure is convenient to dismount and maintenance efficiency can be improved effectively.
Description
Technical field
The present invention relates to the linkage structure of a kind of horizontal shaft wind-power set main shaft and gear-box.
Background technique
At present, the connection of domestic and international horizontal axis wind-driven generator group main shaft and gear-box adopts rigid construction, and common form comprises and connects main shaft and gearbox input shaft by locking plate or be directly connected main shaft and gearbox input shaft and other structure by bolt.
Connect main shaft and gearbox input shaft structure by locking plate, need longer main shaft, whole cabin lengthens; Main axe intensity require and manufacture requirements high; The stressed complexity of main bearing, the impact of gear-box acceptor bearing structure need bear larger additional load, and stressing conditions is complicated.
Directly connect main shaft and gearbox input shaft by bolt, main bearing is greatly stressed, and gear-box need bear the additional load because deadweight and stand stretch cause, and stressing conditions is complicated.
Larger load-bearing and the stressing conditions of complexity easily cause gearbox fault, the corresponding increase of dynamic additional load of simultaneously bearing to the generator that gear-box connects, improve the rate of fault of wind-driven generator group wheel box and generator, cause high maintenance and repair cost, and reduce equipment service life.
Summary of the invention
In order to improve the deficiency of existing Placement, the invention provides the linkage structure of a kind of horizontal shaft wind-power set main shaft and gear-box, this structure adopts straight-tooth internal tooth and cydariform external tooth to engage this flexible connecting structure, effectively can reduce the additional load that main shaft transmits, reduce main shaft and the stressed complexity of gear-box.
The technical solution adopted in the present invention is: on main shaft, process straight-tooth internal tooth, and gearbox input shaft processes cydariform external tooth, and main shaft realizes moment of torsion transmission with gear-box by described straight-tooth internal tooth and engaging completely of described cydariform external tooth.
Wherein, described straight-tooth internal tooth and cydariform external tooth interchanging positions, namely process cydariform external tooth, gearbox input shaft process straight-tooth internal tooth on main shaft.
Described straight-tooth internal tooth can replace directly on main shaft or gearbox input shaft, processing straight-tooth internal tooth by installing straight-tooth internal-gear on main shaft or gearbox input shaft.
Described cydariform external tooth can replace directly on main shaft or gearbox input shaft, processing cydariform external tooth by installing cydariform external tooth gear on main shaft or gearbox input shaft.
Adopt the linkage structure of a kind of horizontal shaft wind-power set main shaft of the present invention and gear-box, engaged completely by straight-tooth internal tooth and cydariform external tooth and realize flexibly connecting of main shaft and gear-box, main-shaft axis and gearbox input shaft axis allow a small amount of radial and axial skew and certain augular offset, the moment of flexure that main shaft is subject to and be subject to mainframe distortion impact can not pass to gear-box, additional load to gear-box transmission obviously reduces, main shaft, gear-box, the stressed equal relative simplicity of main bearing between main shaft and mainframe, the corresponding minimizing of dynamic additional load between gear-box and generator.Reduce the Design and manufacture requirement of blower fan to main shaft, machine's drive chain structure can be compacter, and the design of blower fan is also more reliable.Gear-box and main bearing rate of fault can be reduced simultaneously, extend its working life.Jointly realize the reduction of blower fan cost, improve blower fan stability and reliability.Even if when gear-box breaks down, the more convenient dismounting of linkage structure of this flexibility, effectively can improve maintenance efficiency.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the linkage structure of a kind of horizontal shaft wind-power set main shaft and gear-box.
Accompanying drawing 2 be a kind of horizontal shaft wind-power set main shaft with the linkage structure of gear-box engage detailed drawing.
In figure: 1, main shaft; 2, cydariform external tooth; 3, straight-tooth internal tooth; 4, gearbox input shaft; 5, gear-box.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
The linkage structure of a kind of horizontal shaft wind-power set main shaft and gear-box is shown in figure, this structure processes straight-tooth internal tooth (3) on main shaft (1), gearbox input shaft (4) processes cydariform external tooth (2), and main shaft (1) realizes moment of torsion transmission with gear-box (5) by straight-tooth internal tooth (3) and engaging completely of cydariform external tooth (2).
Wherein, described straight-tooth internal tooth (3) and cydariform external tooth (2) interchanging positions, namely process cydariform external tooth (2), gearbox input shaft (4) process straight-tooth internal tooth (3) on main shaft (1).
Described straight-tooth internal tooth (3) can by replacing directly at main shaft (1) upper processing straight-tooth internal tooth (3) at the upper straight-tooth internal-gear of installing of main shaft (1).
Described cydariform external tooth (2) can by replacing directly at gearbox input shaft (4) upper processing cydariform external tooth (2) at the upper cydariform external tooth gear of installing of gearbox input shaft (4).
This flexible connecting structure is engaged by straight-tooth internal tooth (3) and cydariform external tooth (2) by adopting, main shaft (1) axis and gearbox input shaft (4) axis allow a small amount of radial and axial skew and certain augular offset, the moment of flexure that main shaft (1) is subject to and be subject to mainframe distortion impact can not pass to gear-box (5), the additional load transmitted to gear-box (5) obviously reduces, main shaft (1), gear-box (5), the stressed equal relative simplicity of main bearing between main shaft (1) and mainframe, the corresponding minimizing of dynamic additional load between gear-box (5) and generator.Reduce the Design and manufacture requirement of blower fan to main shaft (1), machine's drive chain structure can be compacter, and the design of blower fan is more reliable.Gear-box (5) and main bearing rate of fault can be reduced simultaneously, extend its working life.Jointly realize the reduction of blower fan cost, improve blower fan stability and reliability.Even if when gear-box (5) breaks down, the more convenient dismounting of linkage structure of this flexibility, effectively can improve maintenance efficiency.
Although through being described in conjunction with specific embodiments the present invention, for the skilled personage of the art, according to describing above make substitute, amendment will be apparent with changing.Therefore, substitute at such, when modifications and variations fall in the spirit and scope of claim of the present invention, should be included in the present invention.
Claims (4)
1. the linkage structure of a horizontal shaft wind-power set main shaft and gear-box, it is characterized in that: on main shaft, process straight-tooth internal tooth, gearbox input shaft processes cydariform external tooth, and main shaft realizes moment of torsion transmission with gear-box by described straight-tooth internal tooth and engaging completely of described cydariform external tooth.
2. the linkage structure of a kind of horizontal shaft wind-power set main shaft according to claim 1 and gear-box, it is characterized in that: described straight-tooth internal tooth and cydariform external tooth interchanging positions, namely on main shaft, process cydariform external tooth, gearbox input shaft processes straight-tooth internal tooth.
3. according to the linkage structure of claim 1 and a kind of horizontal shaft wind-power set main shaft according to claim 2 and gear-box, it is characterized in that: described straight-tooth internal tooth can replace directly on main shaft or gearbox input shaft, processing straight-tooth internal tooth by installing straight-tooth internal-gear on main shaft or gearbox input shaft.
4. according to the linkage structure of claim 1 and a kind of horizontal shaft wind-power set main shaft according to claim 2 and gear-box, it is characterized in that: described cydariform external tooth can replace directly on main shaft or gearbox input shaft, processing cydariform external tooth by installing cydariform external tooth gear on main shaft or gearbox input shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410386576.6A CN105465200A (en) | 2014-08-08 | 2014-08-08 | Connecting structure for main shaft and gearbox of horizontal-axis wind turbine unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410386576.6A CN105465200A (en) | 2014-08-08 | 2014-08-08 | Connecting structure for main shaft and gearbox of horizontal-axis wind turbine unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105465200A true CN105465200A (en) | 2016-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410386576.6A Pending CN105465200A (en) | 2014-08-08 | 2014-08-08 | Connecting structure for main shaft and gearbox of horizontal-axis wind turbine unit |
Country Status (1)
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|---|---|
| CN (1) | CN105465200A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2835640Y (en) * | 2005-11-16 | 2006-11-08 | 郑州机械研究所 | Vertical hollow axis accelerating gearbox and its apparatus for wind power generation |
| CN200965016Y (en) * | 2006-07-28 | 2007-10-24 | 中信重型机械公司 | Drum-shape tooth safe coupler |
| CN201921891U (en) * | 2010-08-25 | 2011-08-10 | 一重集团大连设计研究院有限公司 | Novel arranged rolling mill main transmission system |
| CN202746548U (en) * | 2012-08-21 | 2013-02-20 | 华锐风电科技(集团)股份有限公司 | Transmission mechanism and wind generating set |
| CN203453430U (en) * | 2013-07-12 | 2014-02-26 | 湖南万通电力科工有限公司 | A double-shaft stirring mixer driving device |
| CN103993540A (en) * | 2014-05-28 | 2014-08-20 | 池州腾虎机械科技有限公司 | Connecting structure of multiple eccentric shafts and synchronous driving device thereof |
| CN204113927U (en) * | 2014-08-08 | 2015-01-21 | 上海电气风电设备有限公司 | A kind of wind driven generation set main shaft by gears meshing and gear-box linkage structure |
-
2014
- 2014-08-08 CN CN201410386576.6A patent/CN105465200A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2835640Y (en) * | 2005-11-16 | 2006-11-08 | 郑州机械研究所 | Vertical hollow axis accelerating gearbox and its apparatus for wind power generation |
| CN200965016Y (en) * | 2006-07-28 | 2007-10-24 | 中信重型机械公司 | Drum-shape tooth safe coupler |
| CN201921891U (en) * | 2010-08-25 | 2011-08-10 | 一重集团大连设计研究院有限公司 | Novel arranged rolling mill main transmission system |
| CN202746548U (en) * | 2012-08-21 | 2013-02-20 | 华锐风电科技(集团)股份有限公司 | Transmission mechanism and wind generating set |
| CN203453430U (en) * | 2013-07-12 | 2014-02-26 | 湖南万通电力科工有限公司 | A double-shaft stirring mixer driving device |
| CN103993540A (en) * | 2014-05-28 | 2014-08-20 | 池州腾虎机械科技有限公司 | Connecting structure of multiple eccentric shafts and synchronous driving device thereof |
| CN204113927U (en) * | 2014-08-08 | 2015-01-21 | 上海电气风电设备有限公司 | A kind of wind driven generation set main shaft by gears meshing and gear-box linkage structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 200241, 8 floor, building 555, Dongchuan Road, Minhang District, Shanghai. Applicant after: Shanghai Electric Wind Power Group Co., Ltd. Applicant after: Shanghai Electrical Wind Power Equipment Dongtai Co., Ltd. Address before: 200241 4, 4 building, 555 Dongchuan Road, Minhang District, Shanghai. Applicant before: Shanghai Sewind Co., Ltd. Applicant before: Shanghai Electrical Wind Power Equipment Dongtai Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160406 |
|
| RJ01 | Rejection of invention patent application after publication |