CN211231535U - Wind power gear box with bearing outer ring anti-slip structure - Google Patents
Wind power gear box with bearing outer ring anti-slip structure Download PDFInfo
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- CN211231535U CN211231535U CN201922322317.8U CN201922322317U CN211231535U CN 211231535 U CN211231535 U CN 211231535U CN 201922322317 U CN201922322317 U CN 201922322317U CN 211231535 U CN211231535 U CN 211231535U
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- outer ring
- bearing
- torque arm
- rotation pin
- gap
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- 230000007704 transition Effects 0.000 claims abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000010791 quenching Methods 0.000 abstract description 3
- 230000000171 quenching effect Effects 0.000 abstract description 3
- 238000005496 tempering Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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Abstract
The utility model discloses a wind power gear box with a bearing outer ring anti-slip structure, which comprises a torque arm, an input end cover and a first-level planet carrier bearing with a locking groove, wherein the bearing outer ring of the first-level planet carrier bearing is in interference fit or transition fit with the torque arm; the torque arm is provided with an anti-rotation groove, the input end cover is provided with a spigot end face, when the torque arm and the input end cover are fixedly connected, gaps are formed among the anti-rotation groove, the spigot end face and an outer ring bearing of the first-stage planet carrier bearing, an anti-rotation pin is arranged in the gap, and one end of the anti-rotation pin is in surface contact with a locking groove of the first-stage planet carrier bearing, so that the phenomenon of bearing outer ring slipping is avoided; the first gap, the second gap and the third gap formed by the anti-rotation groove of the torque arm and the end face of the anti-rotation pin can improve the processing fault tolerance rate, improve the assembly efficiency and reduce the production cost; the anti-rotation pin is subjected to quenching and tempering, so that the abrasion resistance of the structure is greatly improved, and the stability and the reliability of the operation of the gear box are improved.
Description
Technical Field
The utility model relates to a wind-powered electricity generation gear box, in particular to wind-powered electricity generation gear box with bearing inner race prevents structure of skidding.
Background
With the development of economy and the requirement of national environmental protection, the demand of new social energy is increasing, wherein wind energy is taken as an emerging energy source, and the proportion of the new social energy source in recent years is higher. The requirements on wind power generators are higher and higher, and the power is higher and higher, so that the requirements on a wind power gear box which is a core component in the wind power generator are higher and higher.
The wind power gear box comprises transmission structures at all levels, wherein a first-level planetary system serves as an input level and bears most of high extreme load and high alternating load generated at an impeller, and the stability of the operation of a first-level planetary carrier bearing determine the stability and the reliability of the whole wind power gear box transmission system. Under complex working conditions of large torque, large bending moment, high alternating load and the like, the bearing is easy to creep, the gap between the bearing outer ring and the bearing hole is increased, and the phenomenon of slipping of the bearing outer ring can be caused at the moment. Once the bearing outer ring skids, not only can influence the stability of whole transmission system, can reduce bearing life moreover, increase the operation cost.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a wind-powered electricity generation gear box with bearing inner race prevents structure of skidding solves the bearing and easily takes place the creep and leads to bearing inner race and dead eye clearance grow, causes the bearing inner race phenomenon of skidding.
The technical scheme is as follows: the utility model discloses a wind power gear box with bearing outer ring anti-skidding structure, including torque arm, input end cap and the one-level planet carrier bearing of taking the locking groove certainly, the bearing outer ring and the torque arm interference of one-level planet carrier bearing or transition fit; the torque arm is provided with an anti-rotation groove, the input end cover is provided with a spigot end face, when the torque arm is fixedly connected with the input end cover, gaps are formed among the anti-rotation groove, the spigot end face and an outer ring bearing of the one-level planet carrier bearing, an anti-rotation pin is arranged in the gaps, and one end of the anti-rotation pin is in surface contact with a locking groove of the one-level planet carrier bearing.
By adopting the technical scheme, the anti-rotation pin connects the torque arm and the bearing outer ring together like a key, so that the phenomenon of slipping of the bearing outer ring is avoided.
Further, the anti-rotation pin is L-shaped.
Furthermore, a first gap is formed between the anti-rotation groove of the torque arm and the upper end face of the anti-rotation pin.
Furthermore, a second gap is formed between the anti-rotation groove of the torque arm and the right end face of the anti-rotation pin.
Furthermore, a third gap is formed between the spigot end surface of the input end cover and the left end surface of the anti-rotation pin.
Has the advantages that: compared with the prior art, the utility model: the torsion arm and the bearing outer ring are connected together like a key by the anti-rotation pin, so that the phenomenon of slipping of the bearing outer ring is avoided; the first gap, the second gap and the third gap formed by the anti-rotation groove of the torque arm and the end face of the anti-rotation pin can improve the processing fault tolerance rate, improve the assembly efficiency and reduce the production cost; the anti-rotation pin is subjected to quenching and tempering, so that the abrasion resistance of the structure is greatly improved, and the stability and the reliability of the operation of the gear box are improved.
Drawings
FIG. 1 is a schematic cross-sectional view at a torsion arm of a wind power gearbox with a bearing outer race anti-slip structure;
fig. 2 is an enlarged view at a in fig. 1.
Detailed Description
As shown in fig. 1 and 2, the wind power gear box with the bearing outer ring anti-slip structure comprises a torque arm 1, an input end cover 2 and a first-stage planet carrier bearing 3 with a stop groove, wherein the bearing outer ring of the first-stage planet carrier bearing 3 is in interference fit or transition fit with the torque arm 1; the torque arm is characterized in that an anti-rotation groove is formed in the torque arm 1, a spigot end face is formed in the input end cover 2, when the torque arm 1 is fixedly connected with the input end cover 2, gaps are formed among the anti-rotation groove, the spigot end face and an outer ring bearing of the first-stage planet carrier bearing 3, an anti-rotation pin 4 is arranged in each gap, and one end of the anti-rotation pin 4 is in surface contact with a locking groove of the first-stage planet carrier bearing 3.
In order that the anti-rotation pin 4 can bear more shearing force, the anti-rotation pin 4 is set to be L-shaped, and in order to enable the anti-rotation pin 4 to be attached to the surface of the stop groove, the anti-rotation pin is provided with an inclined surface.
In order to avoid interference between the input end cover 2 and the torque arm 1 during installation and caused by the increase of the anti-rotation pin 4, the local volume of the anti-rotation pin 4 is smaller than a gap formed between the input end cover 2 and the torque arm 1 and a gap formed between the input end cover 2 and the bearing outer ring of the first-stage planet carrier bearing 3, so that a gap I6 is formed between the anti-rotation groove of the torque arm 1 and the upper end face of the anti-rotation pin 4, and the gap I6 is formed between the anti-rotation groove of the torque arm 1 and the upper end face of the anti-rotation pin 4, so that assembly interference caused by. A second gap 7 is formed between the anti-rotation groove of the torque arm 1 and the right end face of the anti-rotation pin 4; a third gap 8 is formed between the spigot end surface of the input end cover 2 and the left end surface of the anti-rotation pin 4; a second gap 7 is formed between the arm anti-rotation groove and the right end face of the anti-rotation pin 4, and a third gap 8 is formed between the spigot end face of the input end cover 2 and the left end face of the anti-rotation pin 4, so that assembly interference caused by a spigot depth machining error of the input end cover 2 or a length machining error of the anti-rotation pin 4 can be prevented.
The anti-rotation pin 4 is subjected to quenching and tempering, so that the abrasion resistance of the structure is greatly improved, and the stability and the reliability of the operation of the gear box are improved.
Claims (5)
1. A wind power gear box with a bearing outer ring anti-slip structure comprises a torque arm (1), an input end cover (2) and a first-stage planet carrier bearing (3) with a stop groove, wherein the bearing outer ring of the first-stage planet carrier bearing (3) is in interference fit or transition fit with the torque arm (1); the torque arm is characterized in that an anti-rotation groove is formed in the torque arm (1), a spigot end face is formed in the input end cover (2), when the torque arm (1) is fixedly connected with the input end cover (2), gaps are formed among the anti-rotation groove, the spigot end face and an outer ring bearing of the first-stage planet carrier bearing (3), an anti-rotation pin (4) is arranged in each gap, and one end of the anti-rotation pin (4) is in surface contact with a locking groove of the first-stage planet carrier bearing (3).
2. The wind power gear box with the bearing outer ring anti-slip structure as claimed in claim 1, wherein the anti-rotation pin (4) is provided in an L shape.
3. The wind power gearbox with the bearing outer ring anti-slip structure as claimed in claim 1, wherein a first gap (6) is formed between the anti-rotation groove of the torque arm (1) and the upper end face of the anti-rotation pin (4).
4. The wind power gear box with the bearing outer ring anti-slip structure as claimed in claim 1, wherein a second gap (7) is formed between the anti-rotation groove of the torque arm (1) and the right end face of the anti-rotation pin (4).
5. The wind power gearbox with the bearing outer ring anti-slip structure as claimed in claim 1, wherein a third gap (8) is formed between the spigot end face of the input end cover (2) and the second left end face of the anti-rotation pin (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922322317.8U CN211231535U (en) | 2019-12-23 | 2019-12-23 | Wind power gear box with bearing outer ring anti-slip structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922322317.8U CN211231535U (en) | 2019-12-23 | 2019-12-23 | Wind power gear box with bearing outer ring anti-slip structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211231535U true CN211231535U (en) | 2020-08-11 |
Family
ID=71943217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922322317.8U Active CN211231535U (en) | 2019-12-23 | 2019-12-23 | Wind power gear box with bearing outer ring anti-slip structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211231535U (en) |
-
2019
- 2019-12-23 CN CN201922322317.8U patent/CN211231535U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.99 Furong Zhongsan Road, Xishan Economic and Technological Development Zone, Wuxi City, Jiangsu Province, 214000 Patentee after: Delijia Transmission Technology (Jiangsu) Co.,Ltd. Country or region after: China Address before: No.99 Furong Zhongsan Road, Xishan Economic and Technological Development Zone, Wuxi City, Jiangsu Province, 214000 Patentee before: DELIJIA TRANSMISSION TECHNOLOGY (JIANGSU) Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |