CN201461271U - Main shaft and single-bearing configured high-power wind power generation speed increasing box - Google Patents
Main shaft and single-bearing configured high-power wind power generation speed increasing box Download PDFInfo
- Publication number
- CN201461271U CN201461271U CN2009201287130U CN200920128713U CN201461271U CN 201461271 U CN201461271 U CN 201461271U CN 2009201287130 U CN2009201287130 U CN 2009201287130U CN 200920128713 U CN200920128713 U CN 200920128713U CN 201461271 U CN201461271 U CN 201461271U
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- CN
- China
- Prior art keywords
- bearing
- main shaft
- box
- planet
- power generation
- 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 - Fee Related
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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
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Retarders (AREA)
- General Details Of Gearings (AREA)
Abstract
The utility model relates to a main shaft and single-bearing configured high-power wind power generation speed increasing box. A planet shaft is arranged on a main shaft; a planet wheel is supported by a planet bearing on the planet shaft; the planet wheel is engaged with the front end of a sun wheel and a ring gear; the ring gear and a rear box body are fixed together; the rear end of the sun wheel and an output shaft housing are in spline fit; the output shaft housing is penetrated in the rear box body and is supported on a central boss of the rear box body by an output front bearing and an output rear bearing; the front part of the main shaft is supported on the box body by a double-row tapered roller bearing; and the rear end of the main shaft and the central boss of the rear box body are in clearance fit. The utility model reduces main-shaft axis beat caused by unstable load and rear bearing windage, which is beneficial to stable joggle; the stress distribution condition of a rollaway nest is good, and the impact resistance is strong; the number of rollers is huge, the stress of single roller is smaller, and thereby, long-term stable running can be ensured. The the speed increasing box has fewer power transmission links and higher efficiency, thereby being beneficial to gear load distribution, prolonging running time and increasing running reliability.
Description
Technical field
The utility model relates to a kind of wind power generation gear case, relates in particular to the main shaft single shaft and holds configuration high-power wind power generation speedup box.
Background technique
At present, 2 domestic of the many employings of wind power generation speed increasing gear-box main shaft are supported or supported at three point.Main shaft adopts the duplex bearing configuration, and then the rear bearing size is big if fore bearing does not adopt interference; If there was the location in fore bearing employing interference then rear bearing, be unfavorable for stable output, influenced by machining accuracy and cause big additional load.Simultaneously, the main shaft axial dimension is all longer in duplex bearing or the configuration of three bearings, and main shaft is heavier, needs the multi-processing one place's bearing hole and the diameter of axle, and qualifying point and fault point are all more.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of energy main shaft single shaft lasting, effective, stable operation to hold configuration high-power wind power generation speedup box.
The technical solution of the utility model is as follows: a kind of main shaft single shaft holds configuration high-power wind power generation speedup box, planet axis is installed on main shaft, support planet wheel by planetary bearing on this planet axis, front end and the ring gear of planet wheel while with sun gear meshes, described ring gear is between preceding casing and rear box, and fix with rear box, the rear end of described sun gear is stretched in the output sleeve, and with the output sleeve spline fitted, output sleeve is located in the rear box, before output, rear bearing is bearing on the central boss of rear box, its key is: the front portion of described main shaft is bearing on the casing by a double-row conical bearing, the rear end of main shaft embeds between the central boss and tank wall of rear box, and with the central boss Spielpassung of rear box.
The utility model is integrated with wind driven generation set main shaft and wind power generation speed increasing box input shaft, and wheel hub directly is connected on the main shaft, and the main shaft radial dimension is bigger, adopts single shaft to hold configuration.Main shaft only has the double-row conical bearing of front end, and the rear end does not have spring bearing, for single shaft holds support, is cantilever position.The input loading transfer is to main shaft, and radial load, thrust load, commentaries on classics distance all are delivered to preceding casing by bearing, and then are delivered to the tower tube; Moment of torsion is delivered to planet axis by main shaft, planet axis is stressed by one group of parallel forces balance on the planet wheel, this group parallel forces distributes and is delivered to ring gear and sun gear, ring gear is stressed to be delivered to the tower tube via rear box, and the stressed output sleeve that is delivered to of sun gear is to motor or the output of second level engagement driving.The utility model is rational in infrastructure, compact, can continue, effectively, operation stably, the service condition of high-power wind turbine unit in can satisfying preferably, especially the axial dimension requirement more in short-term.
Described double-row conical bearing is made of two inner rings, two row rollers and an outer ring, wherein fit tightly between two inner rings, each inner ring and main shaft interference fit, two inner rings cooperate with the outer ring rolling by the roller of two row symmetric arrangement, and described outer ring is fixed by bolt and preceding casing.More than simple and reliable for structure, assembling easily; Double-row conical bearing interference configuration makes it when bearing moment of flexure, and roller diagonal angle, the left and right sides is stressed.Roller raceway good rigidly, the axis deviation that takes place under load rating is minimum, and is little to the influence of planetary stage gear engagement, helps load output stably.
The raceway angles of roller is 43～47 ° in the described double-row conical bearing.The stress that the couple that cone angle about 45 ° makes raceway can bear the balance moment of flexure causes, more roller quantity greatly reduces the stress that single roller bears, but bending resistance can and be born radially simultaneously, thrust load.
As preferably, described planetary bearing is single selfaligning roller bearing or double-row conical bearing or two full type roller bearings or cylindrical roller bearing.
The beneficial effects of the utility model are:
1, main shaft bearing is reduced to one, has reduced number of bearings, reduced main-shaft axis beat unstable because of load and that the rear bearing play brings, help steady engagement.
2, the main spindle front bearing radial dimension is big and the existence of preload is arranged, and raceway stress distribution situation is better, and anti-impact force is stronger; Roller quantity is big, and single roller stress is less, can guarantee operation steady in a long-term.
3, reduced the processing quantity of bearing hole, the influence of having avoided the preload brought because of machining error and decentraction to cause helps gear load to distribute, and prolongs running time, improves operating reliability.
4, the novel middle power transmission link of this use is less, and efficient is higher.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, the utility model is by preceding casing 1, bolt 2, double-row conical bearing 3, input disc 4, main shaft 5, planet axis 6, planetary bearing 7, planet distance ring 8,9, planet wheel 10, sun gear 11, output sleeve 12, output fore bearing 13, output distance ring 14, input end cap 15, output rear bearing 16, ring gear 17, rear box 18, output end cap 19 and sun gear gland 20 constitute.Wherein import the front end that disc 4 is placed in main shaft 5 admittedly, be provided with input end cap 15 in the outside of input disc 4, this input end cap 15 fixes by bolt and preceding casing 1.In the casing 1, the front portion of main shaft 5 was bearing on the casing 1 by a double-row conical bearing 3 before described main shaft 5 was located in, and double-row conical bearing 3 adopts many places, both sides oil spout pressure lubrication (shown in arrow among the figure).Described double-row conical bearing 3 is made of two inner rings, two row rollers and an outer ring, wherein fit tightly between two inner rings, each inner ring and main shaft 5 interference fit, two inner rings roller by two row symmetric arrangement rolls with the outer ring and cooperates, and the outer ring is fixed on the preceding casing 1 by bolt 2.The raceway angles of described roller is 43～47 °, is preferably 45 ° in the present embodiment.The rear end of described main shaft 5 embeds between the central boss and tank wall of rear box 18, and with the central boss Spielpassung of rear box 18.
As can be known from Fig. 1, at the rear portion of main shaft 5 planet axis 6 is installed, by planetary bearing 7 supporting planet wheels 10, planet distance ring 8,9 is set in the both sides of planetary bearing 7 on this planet axis 6, these two planet distance rings all are set on the planet axis 6.Planetary bearing 7 is single selfaligning roller bearing or double-row conical bearing or two full type roller bearings or cylindrical roller bearing etc., adopts pressure lubrication.Described planet wheel 10 simultaneously with the front end and ring gear 17 engagements of sun gear 11, ring gear 17 and fixes with rear box 18 between preceding casing 1 and rear box 18.The rear end of described sun gear 11 is stretched in the output sleeve 12, and is connected with output sleeve 12 splines, at the ear end face of sun gear 11 by bolt sun gear gland 20.Described output sleeve 12 is located in the rear box 18, is bearing on the central boss of rear box 18 by exporting forward and backward bearing 13,16, is provided with output distance ring 14 between output fore bearing 13 and output rear bearing 16.Also be set with output end cap 19 on the described output sleeve 12, this output end cap 19 is fixed with the central boss of rear box 18.
Working principle of the present utility model is: wheel hub and main shaft 5 connect, the input loading transfer is to main shaft 5, about 45 ° of double-row conical bearing 3 raceway angles, casing 1 before radial load, thrust load, commentaries on classics distance all are delivered to by double-row conical bearing 3, and then be delivered to the tower tube; Moment of torsion is by main shaft 5, be delivered to planet axis 6, planet axis 6 is stressed by one group of parallel forces balance on the planet wheel 10, this group parallel forces distributes and is delivered to ring gear 17 and sun gear 11, ring gear 17 is stressed to be delivered to the tower tube via rear box 18, and the sun gear 11 stressed output sleeves 12 that are delivered to are to motor or the output of second level engagement driving.
Claims (4)
1. a main shaft single shaft holds configuration high-power wind power generation speedup box, go up installation planet axis (6) at main shaft (5), this planet axis (6) goes up by planetary bearing (7) supporting planet wheel (10), front end and the ring gear (17) of planet wheel (10) while with sun gear (11) meshes, described ring gear (17) is positioned between preceding casing (1) and the rear box (18), and fix with rear box (18), the rear end of described sun gear (11) is stretched in the output sleeve (12), and with output sleeve (12) spline fitted, output sleeve (12) is located in the rear box (18), before output, rear bearing (13,16) be bearing on the central boss of rear box (18), it is characterized in that: the front portion of described main shaft (5) is bearing on the casing (1) by a double-row conical bearing (3), the rear end of main shaft (5) embeds between the central boss and tank wall of rear box (18), and with the central boss Spielpassung of rear box (18).
2. main shaft single shaft according to claim 1 holds configuration high-power wind power generation speedup box, it is characterized in that: described double-row conical bearing (3) is made of two inner rings, two row rollers and an outer ring, wherein fit tightly between two inner rings, each inner ring and main shaft (5) interference fit, two inner rings roller by two row symmetric arrangement rolls with the outer ring and cooperates, and described outer ring is fixed by bolt (2) and preceding casing (1).
3. main shaft single shaft according to claim 2 holds configuration high-power wind power generation speedup box, and it is characterized in that: the raceway angles of roller is 43～47 ° in the described double-row conical bearing (3).
4. main shaft single shaft according to claim 1 holds configuration high-power wind power generation speedup box, it is characterized in that: described planetary bearing (7) is single selfaligning roller bearing or double-row conical bearing or two full type roller bearings or cylindrical roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201287130U CN201461271U (en) | 2009-09-02 | 2009-09-02 | Main shaft and single-bearing configured high-power wind power generation speed increasing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201287130U CN201461271U (en) | 2009-09-02 | 2009-09-02 | Main shaft and single-bearing configured high-power wind power generation speed increasing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461271U true CN201461271U (en) | 2010-05-12 |
Family
ID=42388625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201287130U Expired - Fee Related CN201461271U (en) | 2009-09-02 | 2009-09-02 | Main shaft and single-bearing configured high-power wind power generation speed increasing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461271U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016015935A1 (en) * | 2014-07-29 | 2016-02-04 | Zf Friedrichshafen Ag | Modular coupling of a wind turbine gearbox to a generator and method |
| CN106224451A (en) * | 2016-08-30 | 2016-12-14 | 天地上海采掘装备科技有限公司 | Shock resistance type low seam mining machinery planetary mechanism and processing method thereof |
-
2009
- 2009-09-02 CN CN2009201287130U patent/CN201461271U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016015935A1 (en) * | 2014-07-29 | 2016-02-04 | Zf Friedrichshafen Ag | Modular coupling of a wind turbine gearbox to a generator and method |
| CN106224451A (en) * | 2016-08-30 | 2016-12-14 | 天地上海采掘装备科技有限公司 | Shock resistance type low seam mining machinery planetary mechanism and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20180902 |