CN215763219U - High-supporting-rigidity planet carrier bearing arrangement structure - Google Patents
High-supporting-rigidity planet carrier bearing arrangement structure Download PDFInfo
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- CN215763219U CN215763219U CN202120598379.6U CN202120598379U CN215763219U CN 215763219 U CN215763219 U CN 215763219U CN 202120598379 U CN202120598379 U CN 202120598379U CN 215763219 U CN215763219 U CN 215763219U
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- planet carrier
- tapered roller
- roller bearing
- main shaft
- ring
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- 238000009434 installation Methods 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
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Abstract
The utility model discloses a high-bearing-rigidity planet carrier bearing arrangement structure, wherein a pair of tapered roller bearings arranged back to back are used for supporting a planet carrier, the axes of the rollers and the axis of a main shaft of the planet carrier form a certain included angle, and the tapered roller bearings arranged back to back are adopted, so that the load centers of the tapered roller bearings respectively extend towards two sides, the span of the tapered roller bearings is enlarged, and the high-bearing-rigidity planet carrier can be provided.
Description
Technical Field
The utility model relates to the field of bearings, in particular to a high-support-rigidity planet carrier bearing arrangement structure.
Background
At present, a single-spindle bearing wind generating set is widely applied in the wind power industry due to low cost and good economical efficiency. However, as the power level of the wind generating set is larger and larger, the structural defects of the single main shaft bearing are more obvious. Because the span of a transmission chain formed by the main shaft and the main gear box is long, and the gear box is in a cantilever installation state, the bearing support rigidity of an input planet carrier of the gear box is poor, the gear box is easy to vibrate, and the dynamic response of the system has the risk of easy resonance, so that the working vibration of the gear box is poor, and the fatigue of a structural part is caused, and the structural part is damaged.
SUMMERY OF THE UTILITY MODEL
The planet carrier bearing arrangement structure with high supporting rigidity disclosed by the utility model can improve the supporting rigidity of the input planet carrier of the gear box and prevent the gear box from being damaged due to excessive vibration generated during working.
The utility model discloses a high-supporting rigidity planet carrier bearing arrangement structure which comprises a planet carrier, a left conical roller bearing, a right conical roller bearing, a left positioning ring and a right adjusting ring, wherein the left conical roller bearing is arranged on the planet carrier;
the left tapered roller bearing is arranged outside a main shaft of the planet carrier; the roller axis of the left tapered roller bearing and the axis of the main shaft form a certain included angle; the large end of the inner ring of the left tapered roller bearing is towards the left; the left side and the right side of the inner ring of the left tapered roller bearing are respectively fixed by a retaining shoulder of the planet carrier and a left positioning ring, and the upper end of the outer ring is downwards fixed by a retaining shoulder of a left box body of the planet carrier;
the right tapered roller bearing is arranged outside a main shaft of the planet carrier; the roller axis of the right tapered roller bearing and the axis of the main shaft form a certain included angle; the large end of the inner ring of the right tapered roller bearing faces to the right; the right side of the inner ring of the right tapered roller bearing is positioned by a right adjusting ring, and the upper end of the outer ring is fixed downwards by a retaining shoulder of a right box body of the planet carrier;
and a matched clearance is formed between the right conical roller bearing and the left conical roller bearing.
Furthermore, the inner ring of the left tapered roller bearing is in interference fit with the outer side of the main shaft of the planet carrier, and the outer ring of the left tapered roller bearing is in transition fit with the retaining shoulder of the left box body.
Furthermore, the inner ring of the right tapered roller bearing is in interference fit with the outer side of the main shaft of the planet carrier, and the outer ring of the right tapered roller bearing is in transition fit with the right box body.
Furthermore, the left positioning ring is assembled and fixed on the left side outside the main shaft of the planet carrier in a threaded bolt mode, and the right adjusting ring is assembled and fixed on the right side outside the main shaft of the planet carrier in a threaded bolt mode.
The beneficial technical effects of the utility model are as follows: the planet carrier is supported by a pair of tapered roller bearings arranged back to back, the axes of the rollers and the axis of the main shaft of the planet carrier form a certain included angle, and the load center O is formed by the tapered roller bearings arranged back to back1、O2Extend to both sides respectively, its span enlarges, can provide high support rigidity to the planet carrier.
Drawings
FIG. 1 is a schematic diagram of a high support stiffness planet carrier bearing arrangement.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in FIG. 1, the high support rigidity planet carrier bearing arrangement structure disclosed by the utility model comprises a planet carrier 1, a left tapered roller bearing 3, a right tapered roller bearing 5, a left positioning ring 4 and a right adjusting ring 6.
The left tapered roller bearing 3 is arranged outside the main shaft of the planet carrier 1; the roller axis of the left tapered roller bearing 3 and the axis of the main shaft form a certain included angle; the large end of the inner ring of the left tapered roller bearing 3 is towards the left; the left side and the right side of the inner ring of the left tapered roller bearing 3 are respectively fixed by a retaining shoulder of the planet carrier 1 and a left positioning ring 4, the left positioning ring 4 is assembled and fixed on the outer left side of the main shaft of the planet carrier 1 in a threaded bolt mode, and the upper end of the outer ring is downwards fixed by the retaining shoulder of the left box body 2 of the planet carrier 1.
The right tapered roller bearing 5 is arranged outside the main shaft of the planet carrier 1; the roller axis of the right tapered roller bearing 5 and the axis of the main shaft form a certain included angle; the big end of the inner ring of the right tapered roller bearing 5 faces to the right; the right side of the inner ring of the right tapered roller bearing 5 is positioned by a right adjusting ring 6, the right adjusting ring 6 is assembled and fixed on the outer right side of the main shaft of the planet carrier 1 in a threaded bolt mode, and the upper end of the outer ring is downwards fixed by a retaining shoulder of a right box body 7 of the planet carrier 1.
And a pairing clearance is formed between the right tapered roller bearing 5 and the left tapered roller bearing 3, and the pairing clearance is adjusted and controlled through a right adjusting ring 6.
The inner ring of the left tapered roller bearing 3 is in interference fit with the outer side of the main shaft of the planet carrier 1, and the outer ring is in transition fit with the retaining shoulder of the left box body 2. The inner ring of the right tapered roller bearing 5 is in interference fit with the outer side of the main shaft of the planet carrier 1, and the outer ring is in transition fit with the right box body 7.
The utility model discloses a high-bearing-rigidity planet carrier bearing arrangement structure which supports a planet carrier through a pair of tapered roller bearings in a back-to-back (O-shaped) arrangement mode, wherein the roller axes form a certain included angle with the main shaft axis of the planet carrier, and the left load center O of the tapered roller bearings in the back-to-back (O-shaped) arrangement mode is adopted1Right load center O2The support plates extend towards two sides respectively, and the span of the support plates is enlarged, so that high support rigidity can be provided for the planet carrier.
Claims (4)
1. High supporting rigidity planet carrier bearing arrangement structure which characterized in that: comprises a planet carrier (1), a left tapered roller bearing (3), a right tapered roller bearing (5), a left positioning ring (4) and a right adjusting ring (6);
the left tapered roller bearing (3) is arranged outside a main shaft of the planet carrier (1); the roller axis of the left tapered roller bearing (3) forms a certain included angle with the axis of the main shaft; the large end of the inner ring of the left tapered roller bearing (3) is towards the left; the left side and the right side of the inner ring of the left tapered roller bearing (3) are respectively fixed by a retaining shoulder of the planet carrier (1) and a left positioning ring (4), and the upper end of the outer ring is downwards fixed by a retaining shoulder of a left box body (2) of the planet carrier (1);
the right tapered roller bearing (5) is arranged outside a main shaft of the planet carrier (1); the roller axis of the right tapered roller bearing (5) forms a certain included angle with the axis of the main shaft; the big end of the inner ring of the right tapered roller bearing (5) is right; the right side of the inner ring of the right tapered roller bearing (5) is positioned by a right adjusting ring (6), and the upper end of the outer ring is downwards fixed by a retaining shoulder of a right box body (7) of the planet carrier (1);
and a matched clearance is formed between the right tapered roller bearing (5) and the left tapered roller bearing (3).
2. The high support stiffness planet carrier bearing arrangement of claim 1 wherein: the inner ring of the left tapered roller bearing (3) is in interference fit with the outer side of the main shaft of the planet carrier (1), and the outer ring is in transition fit with the retaining shoulder of the left box body (2).
3. The high support stiffness planet carrier bearing arrangement of claim 2 wherein: the inner ring of the right tapered roller bearing (5) is in interference fit with the outer side of the main shaft of the planet carrier (1), and the outer ring is in transition fit with the right box body (7).
4. The high support stiffness planet carrier bearing arrangement of claim 3 wherein: the left positioning ring (4) is assembled and fixed on the left side outside the main shaft of the planet carrier (1) in a threaded bolt mode, and the right adjusting ring (6) is assembled and fixed on the right side outside the main shaft of the planet carrier (1) in a threaded bolt mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120598379.6U CN215763219U (en) | 2021-03-24 | 2021-03-24 | High-supporting-rigidity planet carrier bearing arrangement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120598379.6U CN215763219U (en) | 2021-03-24 | 2021-03-24 | High-supporting-rigidity planet carrier bearing arrangement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215763219U true CN215763219U (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120598379.6U Active CN215763219U (en) | 2021-03-24 | 2021-03-24 | High-supporting-rigidity planet carrier bearing arrangement structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879551A (en) * | 2021-03-24 | 2021-06-01 | 重庆望江工业有限公司 | High-supporting-rigidity planet carrier bearing arrangement structure |
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2021
- 2021-03-24 CN CN202120598379.6U patent/CN215763219U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879551A (en) * | 2021-03-24 | 2021-06-01 | 重庆望江工业有限公司 | High-supporting-rigidity planet carrier bearing arrangement structure |
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