CN202561011U - Bearing arrangement for planet carrier and planet carrier having the bearing arrangement - Google Patents
Bearing arrangement for planet carrier and planet carrier having the bearing arrangement Download PDFInfo
- Publication number
- CN202561011U CN202561011U CN2011204658500U CN201120465850U CN202561011U CN 202561011 U CN202561011 U CN 202561011U CN 2011204658500 U CN2011204658500 U CN 2011204658500U CN 201120465850 U CN201120465850 U CN 201120465850U CN 202561011 U CN202561011 U CN 202561011U
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- CN
- China
- Prior art keywords
- bearing
- planet carrier
- bearing arrangement
- axle
- frame
- 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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Abstract
The utility model discloses a planet carrier bearing, specifically, a bearing arrangement for a planet carrier (100). The bearing arrangement is positioned on a shaft (102) on one side of the carrier and can counteract inclining moment exerted on the planet carrier (100).
Description
Technical field
The utility model relates to the bearing that is used for the planet carrier that epicyclic gear system uses and arranges.The utility model also relates to the planet carrier that comprises that this bearing is arranged.
Background technique
In epicyclic gear system, the function of frame is that torque load is passed to planetary pinion from input shaft.Particularly in wind turbine application, also require frame that the weight transmitting of gear-box is arrived rotor shaft.Usually, this realizes through first order planet carrier.This also will resist the not centering load from first planetary stage.
In some wind turbine designs, with the size compared of gear-box, the joint between rotor shaft and the gear-box is very big.This has stoped the use by traditional frame of a bearing supporting on the either side of frame.
The method that solves this shortcoming comprises those shown in Fig. 1 and Fig. 2.With reference to Fig. 1, it has shown the planet carrier 100 with axle 102, and axle through bearing 104 supportings, passes through very large bearing 106 supportings on the contrary wind side on the side with the wind of gear-box.Big bearing 106 can stride across the input flange.Yet big bearing is expensive, and since the frame bearing usually by slight loading, bigger bearing has further reduced load, and the risk of following that skidding in the bearing lost efficacy increases.
Referring now to Fig. 2, it has shown to have axle 102 planet carrier 100, axle on the side with the wind of gear-box through bearing 104 supportings, can through separator frame or against the wind bearing use the littler supporting member 106 of diameter.Release bearing can not be very reliable, and use separator frame to need other joint at the size place littler than rotor shaft, and this is highly to load, be difficult to make and increased cost.
Like what see from Fig. 1 and Fig. 2, planet carrier 100 is bearing in the non-rotor-side of frame so that necessary radial support to be provided through bearing 104.
The model utility content
According to a kind of mode of execution of the utility model, provide a kind of bearing that is used for planet carrier to arrange, this bearing is arranged in and is positioned at axle on said the side and goes up and can react on and be applied to said heeling moment.This layout also supports radial load, for example gear-box quality and from the unbalanced load of gear.
Preferably, on said opposite side, there is not the bearing location.
Preferably, said bearing is arranged and is included in the pair of bearings parts that said axle is gone up adjacent positioned.Saidly can comprise DRTB to bearing part.Saidly can comprise the clutch shaft bearing and second bearing to bearing part.Clutch shaft bearing can separate with second bearing.Clutch shaft bearing can separate with second bearing through spacer element.
According to second mode of execution, the utility model provides the planet carrier of the bearing layout that comprises the utility model.
Description of drawings
To through example only the utility model be described with reference to accompanying drawing now, wherein:
Fig. 1 (existing technology) has shown the big bearing that is used for supporting planet carrier.
Fig. 2 (existing technology) has shown release bearing/separator frame layout of supporting planet carrier.
Fig. 3 has shown the schematic representation of a kind of mode of execution that the planet carrier bearing of the utility model is arranged.
Embodiment
The bearing that is used for planet carrier arranges and to comprise heeling moment is provided any layout of reaction force and is positioned at a side of frame on the opposite side of frame, do not have other bearing positioned.For example in wind turbine gearbox, a side can be a side against the wind, and a side can be a side with the wind.Bearing is arranged and can be positioned on side with the wind, on the contrary wind side, do not have bearing.For other gear-box, a side can be an input side, and opposite side can be an outlet side.
With reference to Fig. 3, it has shown the planet carrier 100 with axle 102, and axle is adjacent to be positioned at second supporting member, 106 supportings on the axle 102 through first supporting member 104 with first supporting member 104.In wind turbine gearbox, first supporting member 104 and second supporting member 106 are positioned at the side with the wind of frame, do not have bearing or supporting member in the contrary wind side.This layout with two supporting points provides reaction force to the heeling moment that is applied to frame, and also supporting comprises the gear-box quality and from the radial load of the unbalanced load of gear.
The key feature that the bearing that is formed by first supporting member 104 and second supporting member 106 is arranged is to have the layout that can react on moment in downwind end.This supporting member be to can being the mode side by side of not separating between them, or can locate two unit of closely-spaced between them.
The bearing of the utility model arranges and comprises the pair of bearings parts, for example first supporting member 104 and second supporting member 106, they be positioned at usually first or second level planet carrier 100 and gear box casing (not shown) between.Because they are positioned on the more smaller diameter end of frame, they can very little and easily cooperate.Extra if desired rigidity can be used dual or two row's tapered roller bearings (DRTB).Through using littler bearing also to reduce the thermal change in the preloading of bearing.
Described the bearing layout hereinbefore and comprised the pair of bearings parts, bearing is arranged and is also comprised any layout that heeling moment is provided reaction force.For example, a kind of layout has and two bearing elements that leave the gap each other, although therefore in fact this layout has row's bearing, the roller that replaces supports the relative part of raceway diagonally.This layout can have cylindrical roller, but shows as DRTB.Therefore, this bearing is arranged and is not limited to the pair of bearings parts.
The utility model also comprises having the planet carrier of arranging like the disclosed bearing in front.
Claims (8)
1. a bearing that is used for planet carrier is arranged, it is characterized in that, said bearing is arranged in and is positioned at axle on said the side and goes up and can react on and be applied to said heeling moment.
2. bearing according to claim 1 is arranged, it is characterized in that, on said opposite side, does not have the bearing location.
3. bearing according to claim 1 and 2 is arranged, it is characterized in that, said bearing is arranged and is included in the pair of bearings parts that said axle is gone up adjacent positioned.
4. the bearing that is used for planet carrier according to claim 2 is arranged, it is characterized in that, saidly comprises dual or two row's tapered roller bearings to bearing part.
5. the bearing that is used for planet carrier according to claim 3 is arranged, it is characterized in that, said bearing part is comprised the clutch shaft bearing and second bearing.
6. the bearing that is used for planet carrier according to claim 5 is arranged, it is characterized in that said clutch shaft bearing separates with said second bearing.
7. the bearing that is used for planet carrier according to claim 6 is arranged, it is characterized in that said clutch shaft bearing separates with said second bearing through spacer element.
8. a planet carrier is characterized in that, comprises like the described bearing of aforementioned each claim arranging.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1119214.3 | 2011-11-07 | ||
| GBGB1119214.3A GB201119214D0 (en) | 2011-11-07 | 2011-11-07 | Planet carrier bearings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202561011U true CN202561011U (en) | 2012-11-28 |
Family
ID=45421405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204658500U Expired - Fee Related CN202561011U (en) | 2011-11-07 | 2011-11-16 | Bearing arrangement for planet carrier and planet carrier having the bearing arrangement |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202561011U (en) |
| GB (1) | GB201119214D0 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925338A (en) * | 2013-01-11 | 2014-07-16 | 劲力工业有限公司 | Planetary gear system and planetary gear set thereof |
-
2011
- 2011-11-07 GB GBGB1119214.3A patent/GB201119214D0/en not_active Ceased
- 2011-11-16 CN CN2011204658500U patent/CN202561011U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925338A (en) * | 2013-01-11 | 2014-07-16 | 劲力工业有限公司 | Planetary gear system and planetary gear set thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201119214D0 (en) | 2011-12-21 |
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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: 20121128 Termination date: 20201116 |