CN201326518Y - Main shaft supporting mechanism of wind turbine using double-row back-to-back bearing - Google Patents
Main shaft supporting mechanism of wind turbine using double-row back-to-back bearing Download PDFInfo
- Publication number
- CN201326518Y CN201326518Y CNU2008202338296U CN200820233829U CN201326518Y CN 201326518 Y CN201326518 Y CN 201326518Y CN U2008202338296 U CNU2008202338296 U CN U2008202338296U CN 200820233829 U CN200820233829 U CN 200820233829U CN 201326518 Y CN201326518 Y CN 201326518Y
- Authority
- CN
- China
- Prior art keywords
- main shaft
- bearing
- biserial
- supporting mechanism
- shaft supporting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
- F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
- F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/31—Wind motors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wind Motors (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a main shaft supporting mechanism of a wind turbine using a double-row back-to-back bearing, comprising the main shaft and the double-row back-to-back bearing. The main shaft is connected with the hub and the gearbox of the wind turbine; and the double-row back-to-back bearing is arranged between the main shaft and a main stander. The main shaft supporting mechanism only adopts a double-row back-to-back bearing, thereby having the advantages of reasonable structure, light weight, low manufacture cost and high reliability.
Description
Technical field
The utility model is about wind power generating set, more particularly, and about a kind of biserial wind driven generation set main shaft supporting mechanism of bearing back-to-back that adopts.
Background technique
Main transmission row technology is one of key technology of Large-scale Wind Turbines in the wind energy development technology, and the most employing of Large-scale Wind Turbines at present is the transmission scheme of high speed than gear-box and generator.Wherein the main shaft support mechanism in the main transmission row technology includes the main shaft that is used to connect wheel hub and gear-box, this main shaft is connected with mainframe by bearing, specifically by the bearings main shaft, and then supporting wheel hub and gear-box, also will be to mainframe when giving gear-box from all the other loading transfer of wheel hub with the transmission of torque of wheel hub, stop these load to be passed on the gear-box, to prolong the life-span of gear-box.
The setting type of existing main shaft support mechanism mainly contains:
A kind of is that the main shaft two ends respectively have a bearing, and the driving mechanism size of this structural type is bigger, and transmission part is heavy, the cost height.
Another kind is a bearing to be installed as a strong point on the main shaft, and two strong points in addition are set on gear-box, and this structural type can be transmitted bigger load and give gear-box, and then has influenced the life-span of gear-box.
The model utility content
The purpose of this utility model is to provide the high employing biserial of a kind of rational in infrastructure, in light weight, low cost of manufacture, the reliability wind driven generation set main shaft supporting mechanism of bearing back-to-back.
Adopt in the utility model biserial back-to-back the wind driven generation set main shaft supporting mechanism of bearing include main shaft and biserial bearing back-to-back, the two ends of described main shaft connect the wheel hub and the gear-box of wind power generating set respectively, and described biserial bearing back-to-back is located between described main shaft and the mainframe.
Described biserial bearing back-to-back includes inner ring, the outer ring of fixedlying connected with described mainframe of fixedlying connected with described main shaft and places a plurality of tapered rollers between described inner ring and the outer ring, is formed with the indent of mutual coupling and the conical surface of evagination on the apparent surface of described inner ring and described outer ring.
Described inner ring directly is enclosed within the outer surface of described main shaft, with the outer surface interference fit of described main shaft, and further fixing by trim ring and screw, fixedly connected with described mainframe with most supporting bolts by most bolts hole in described outer ring.
The minor axis that described main shaft makes for casting.
Described tapered roller is divided into two rows and is located at side by side between the conical surface of described inner ring and outer ring.
Adopt in the utility model biserial back-to-back the wind driven generation set main shaft supporting mechanism of bearing only adopt biserial bearings back-to-back, have rational in infrastructure, in light weight, low cost of manufacture, advantage that reliability is high.
Description of drawings
Fig. 1 is the structural representation of wind power generating set main shaft support mechanism in the utility model.
Embodiment
The specific embodiment of the utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, adopt the biserial wind driven generation set main shaft supporting mechanism of bearing back-to-back in the utility model, include main shaft 1 and biserial bearing back-to-back, wherein main shaft 1 is used to connect the wheel hub and the gear-box of wind power generating set, biserial bearing back-to-back is located between main shaft 1 and the mainframe 5, be used for supports main shaft 1, and then supporting wheel hub and gear-box.Because wheel hub, gear-box and mainframe are prior art, in this explanation no longer separately.
The size of main shaft 1 is shorter relatively, is degenerated to the structure of changeover portion form of flanges, thereby adopts forging type to be shaped.Main shaft 1 utilizes flange 8 to be connected with wheel hub, and the other end is connected (not shown) with gear-box.
Biserial bearing back-to-back includes inner ring 4, outer ring 2 and tapered roller 3, wherein, inner ring 4 directly is nested with the outer surface at main shaft 1, outer surface interference fit with main shaft 1, and further fixing by trim ring 6, screw 9, outer ring 2 is connected mainframe 5 by most bolt hole and most supporting bolts 7 that are used to connect mainframe 5.
Respectively form the conical surface 40,20 of the mutual coupling of an indent and evagination in inner ring 4 and outer ring 2 facing surfaces, for increase tapered roller 3 radially with axial carrying capacity, the angle of inclination of this two conical surface 40,20 is about 45 degree, therefore the gap that forms between two conical surfaces 40,20 also is conical, be conical tapered roller 3 thereby between two conical surfaces 40,20, insert, and tapered roller 3 is divided into the evenly distribution of two row.
Only at bearing of main shaft 1 anterior use, bearing inner race 4 is a casting technique simultaneously in main shaft support mechanism in the utility model, and size is shorter relatively, thereby can shorten the distance between wheel hub and the gear-box, shortens the length of whole mainframe 5.
In sum, the main shaft support mechanism in the utility model has the following advantages:
1, only adopt back-to-back bearings point supporting construction of a biserial, have outside the driving moment, all right With most load by biserial back-to-back bearing be delivered on the mainframe, make the load of wheel hub not pass through tooth Roller box transmits, thereby can not cause the power shaft of gear-box to produce distortion because of bending moment, effectively carries The high service life of gear-box.
2, the main shaft between wheel hub and gear-box adopts the linkage section of casting, have rational in infrastructure, in light weight, The advantages such as low cost of manufacture.
Claims (5)
1, a kind of biserial wind driven generation set main shaft supporting mechanism of bearing back-to-back that adopts, include main shaft (1) and biserial bearing back-to-back, it is characterized in that, the two ends of described main shaft (1) connect the wheel hub and the gear-box of wind power generating set respectively, and described biserial bearing back-to-back is located between described main shaft (1) and the mainframe (5).
2, the employing biserial according to claim 1 wind driven generation set main shaft supporting mechanism of bearing back-to-back, it is characterized in that, described biserial back-to-back bearing include inner ring (4), the outer ring (2) of fixedlying connected of fixedlying connected with described main shaft (1) with described mainframe (5) and place described inner ring (4) and outer ring (2) between a plurality of tapered rollers (3), on the apparent surface of described inner ring (4) and described outer ring (2), be formed with the indent of mutual coupling and the conical surface of evagination (40,20).
3, the employing biserial according to claim 2 wind driven generation set main shaft supporting mechanism of bearing back-to-back, it is characterized in that, described inner ring (4) directly is enclosed within the outer surface of described main shaft (1), outer surface interference fit with described main shaft (1), and further fixing by trim ring (6) and screw (9), fixedly connected with described mainframe (5) with most supporting bolts (7) by most bolts hole described outer ring (2).
4, the employing biserial according to claim 1 wind driven generation set main shaft supporting mechanism of bearing back-to-back is characterized in that, the minor axis that described main shaft (1) makes for casting.
5, the employing biserial according to claim 2 wind driven generation set main shaft supporting mechanism of bearing back-to-back is characterized in that, described tapered roller (3) is divided into two rows and is located at side by side between the conical surface (40,20) of described inner ring (4) and outer ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202338296U CN201326518Y (en) | 2008-12-24 | 2008-12-24 | Main shaft supporting mechanism of wind turbine using double-row back-to-back bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202338296U CN201326518Y (en) | 2008-12-24 | 2008-12-24 | Main shaft supporting mechanism of wind turbine using double-row back-to-back bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201326518Y true CN201326518Y (en) | 2009-10-14 |
Family
ID=41178491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202338296U Expired - Lifetime CN201326518Y (en) | 2008-12-24 | 2008-12-24 | Main shaft supporting mechanism of wind turbine using double-row back-to-back bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201326518Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506064A (en) * | 2011-12-26 | 2012-06-20 | 瓦房店轴承集团有限责任公司 | Single-support main shaft bearing of wind generator integral solid cage structure |
| CN105317633A (en) * | 2015-11-26 | 2016-02-10 | 重庆望江工业有限公司 | Support and axial mounting play adjusting structure of wind generating set main bearing |
-
2008
- 2008-12-24 CN CNU2008202338296U patent/CN201326518Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506064A (en) * | 2011-12-26 | 2012-06-20 | 瓦房店轴承集团有限责任公司 | Single-support main shaft bearing of wind generator integral solid cage structure |
| CN105317633A (en) * | 2015-11-26 | 2016-02-10 | 重庆望江工业有限公司 | Support and axial mounting play adjusting structure of wind generating set main bearing |
| CN105317633B (en) * | 2015-11-26 | 2018-07-13 | 重庆望江工业有限公司 | The adjustment structure of support and axially mounted clearance that wind driven generation set main shaft is held |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HUARUI WIND POWER TECHNOLOGY (GROUP) CO., LTD. Free format text: FORMER NAME: HUARUI WIND POWER TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100872, room 7, building 59, 705 Zhongguancun street, Haidian District, Beijing Patentee after: Sinovel Polytron Technologies Inc. Address before: 100872, room 7, building 59, 705 Zhongguancun street, Haidian District, Beijing Patentee before: SINOVEL WIND Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: 100872, room 7, building 59, 705 Zhongguancun street, Haidian District, Beijing Patentee after: SINOVEL WIND GROUP Co.,Ltd. Address before: 100872, 19 floor, building 59, Zhongguancun Avenue, Beijing, Haidian District Patentee before: Sinovel Polytron Technologies Inc. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20091014 |
|
| CX01 | Expiry of patent term |