CN102723803A - Novel wind driven generator bearing structure - Google Patents
Novel wind driven generator bearing structure Download PDFInfo
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- CN102723803A CN102723803A CN2012102127313A CN201210212731A CN102723803A CN 102723803 A CN102723803 A CN 102723803A CN 2012102127313 A CN2012102127313 A CN 2012102127313A CN 201210212731 A CN201210212731 A CN 201210212731A CN 102723803 A CN102723803 A CN 102723803A
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Abstract
The invention discloses a novel wind driven generator bearing structure comprising bearings, a bearing seat (3), a bearing outer cover (6) and a bearing inner cover (14), wherein a lubricating oil channel A (15) is arranged on the bearing outer cover (6); the bearing seat (3) is provided with a lubricating oil channel B (16) and a lubricating oil distributing channel (19); the bearing inner cover (14) is internally provided with a cavity (17); the lubricating oil channel B (16) is communicated with the lubricating oil channel A (15) and the cavity (17); a lubricating oil channel C (18) is arranged inside a bearing outer baffle ring (10); one end of the lubricating oil distributing channel (19) is communicated with the lubricating oil channel B (16); and the other end of the lubricating oil distributing channel (19) is communicated with the lubricating oil channel C (18). The novel wind driven generator bearing structure has the beneficial effects that two independent oil paths are arranged so that each one of the two bearings is respectively provided with one independent oil path and the simultaneous lubrication of the two bearings is realized; and oil is uniformly distributed so that the service life of the bearings is prolonged and the maintenance cost is reduced.
Description
Technical field
The present invention relates to technical field of wind power generating equipment, particularly a kind of novel wind generator bearing arrangement.
Background technology
Wind-driven generator is installed in tens meters high aerial, its lifting and change very inconvenience, and cost is expensive, and therefore bearing life and the reliability to wind-driven generator has very high requirement.
The bearing of wind-driven generator requires high accuracy, low vibration, low noise, and dynamo bearing is in the state of continuous high speed work again, thereby the bearing arrangement designed rationality is most important.So when bearing arrangement designs; It is unreasonable that the structural member assembly precision is selected, bearing insulation structural design unreasonable, lubrication system design unreasonable; All will directly influence the use of bearing, finally bring the maintenance work a series of complicacies, expensive of shutting down generation because of generator failure.
In the generator operation process, greasing amount is too high or too low all can to produce harmful effect to bearing, and according to the statistics of FAG China company, 36% bearing failure results from insufficient lubrication.When traditional single loop oil circuit lubricates duplex bearing in the wind-driven generator, exist because the problems such as grease maldistribution that two bearings position relation causes.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of novel wind generator bearing arrangement of grease distributed uniform is provided.
The object of the invention is realized through following technical scheme: a kind of novel wind generator bearing arrangement; It comprises bearing on the stiff end that is installed on motor shaft, is socketed in the outer bearing pedestal of bearing and the bearing end cover and the internal bearing cover at installation and bearing pedestal two ends; Bearing pedestal is fixed on the electric motor end cap through set bolt; Be provided with insulated ring between electric motor end cap and the bearing pedestal; Edge direction from outside to inside also is provided with shaft block ring and back-up ring successively between described bearing and the bearing end cover, and the inner ring of bearing is fixed on the motor shaft through shaft block ring and back-up ring, and the outer ring of bearing is fixed in the bearing pedestal through internal bearing cover; Bearing comprises cylinder roller bearing and the deep groove ball bearing that is installed on the motor shaft stiff end side by side, and is provided with bearing inner shield ring and the outer back-up ring of bearing between cylinder roller bearing and deep groove ball bearing; Bearing end cover inside is provided with oil leab A; Bearing pedestal is provided with oil leab B, is provided with cavity in the internal bearing cover, and oil leab B is communicated with oil leab A and cavity; The end face of deep groove ball bearing is positioned at cavity, and bearing end cover is provided with the pouring orifice that is communicated with oil leab A.
The outer back-up ring inside of described bearing is provided with oil leab C, also is provided with the lubricated oil duct that divides in the bearing pedestal, and lubricated oil duct one end that divides is communicated with oil leab B, and the lubricated oil duct other end that divides is communicated with oil leab C, and the other end of oil leab C is communicated with the end face of cylinder roller bearing.
The present invention has the following advantages: the present invention in the duplex bearing outer setting two independent oil paths; Solve that existing structure exists because two bearings installation site and concerned the problem that causes grease maldistribution etc.; Make two bearings have an independent oil path respectively, lubricated when realizing to two bearings, and the grease distributed uniform; Thereby prolonged the useful life of bearing, reduced maintenance cost.
Description of drawings
Fig. 1 is a structural representation of the present invention
Among the figure, 1-electric motor end cap, 2-insulated ring, 3-bearing pedestal, 4-set bolt; The 5-pouring orifice, 6-bearing end cover, 7-shaft block ring, 8-back-up ring, 9-cylinder roller bearing; The outer back-up ring of 10-bearing, 11-bearing inner shield ring, 12-deep groove ball bearing, 13-motor shaft, 14-internal bearing cover; 15-oil leab A, 16-oil leab B, 17-cavity, 18-oil leab C, the lubricated oil duct that divides of 19-.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further description:
As shown in Figure 1; A kind of novel wind generator bearing arrangement; It comprises bearing on the stiff end that is installed on motor shaft 13, is socketed in the outer bearing pedestal 3 of bearing and the bearing end cover 6 and the internal bearing cover 14 at installation and bearing pedestal 3 two ends; Bearing pedestal 3 is fixed on the electric motor end cap 1 through set bolt 4; Be provided with insulated ring 2 between electric motor end cap 1 and the bearing pedestal 3, edge direction from outside to inside also is provided with shaft block ring 7 and back-up ring 8 successively between described bearing and the bearing end cover 6, and the inner ring of bearing is fixed on the motor shaft 13 through shaft block ring 7 and back-up ring 8; The outer ring of bearing is fixed in the bearing pedestal 3 through internal bearing cover 14; Bearing comprises the cylinder roller bearing 9 and deep groove ball bearing 12 that is installed on motor shaft 13 stiff ends side by side, and cylinder roller bearing 9 and 12 of deep groove ball bearings be provided with bearing inner shield ring 11 and the outer back-up ring 10 of bearing, and all there are the gap in 3 of back-up ring 8 and bearing pedestals, shaft block ring 7 and 6 of bearing end covers.
Described bearing end cover 6 inside are provided with oil leab A15; Bearing pedestal 3 is provided with oil leab B16; Be provided with cavity 17 in the internal bearing cover 14; Oil leab B16 is communicated with oil leab A15 and cavity 17, and the end face of deep groove ball bearing 12 is positioned at cavity 17, and bearing end cover 6 is provided with the pouring orifice 5 that is communicated with oil leab A15; The inner ring of the end face of internal bearing cover 14 and bearing pedestal 3 and deep groove ball bearing 12 and outer ring are and closely cooperate, thereby make cavity 17 become the airtight passage that is communicated with oil leab B16 and deep groove ball bearing 12.
Bearing end cover 6 is close-fitting two planes with the contact-making surface of bearing pedestal 3, and oil leab A15 and oil leab B16 are positioned at the same correspondence position on two planes, thereby realizes that fitted seal is communicated with, and forms airtight passage.
Outer back-up ring 10 inside of described bearing are provided with oil leab C18; Also be provided with the lubricated oil duct 19 that divides in the bearing pedestal 3; Lubricated oil duct 19 1 ends that divide are communicated with oil leab B16, and lubricated oil duct 19 other ends that divide are communicated with oil leab C18, and the other end of oil leab C18 is communicated with the end face of cylinder roller bearing 9; Outer back-up ring 10 outer walls of bearing and bearing pedestal 3 inwalls closely cooperate; Thereby make oil leab C18 divide oil duct 19 close communication with lubricated, the lubricating oil realization that oil leab C18 flows out is lubricated to the cylindrical roller axle, and grease is finally all discharged through bearing end cover 6 bottoms.
The course of work of the present invention is following: inject grease from pouring orifice 5; Grease contacts with deep groove ball bearing 12 through the oil leab B16 in the oil leab A15 in the bearing end cover 6, the bearing pedestal 3, the cavity 17 in the internal bearing cover 14 successively; Contact with needle bearing through deep groove ball bearing 12 again; Simultaneously, the grease in the oil leab B16 also contacts with cylinder roller bearing 9 through lubricating the oil leab C18 that divides in oil duct 19 and the outer back-up ring 10 of bearing successively, realizes lubricating cylinder roller bearing 9; Make grease to contact with needle bearing more quickly, and can distribute grease more equably.
Claims (2)
1. novel wind generator bearing arrangement; It comprises bearing on the stiff end that is installed on motor shaft (13), is socketed in the outer bearing pedestal (3) of bearing and the bearing end cover (6) and the internal bearing cover (14) at installation and bearing pedestal (3) two ends; Bearing pedestal (3) is fixed on the electric motor end cap (1) through set bolt (4); Be provided with insulated ring (2) between electric motor end cap (1) and the bearing pedestal (3); It is characterized in that: edge direction from outside to inside also is provided with shaft block ring (7) and back-up ring (8) successively between described bearing and the bearing end cover (6); The inner ring of bearing is fixed on the motor shaft (13) through shaft block ring (7) and back-up ring (8); The outer ring of bearing is fixed in the bearing pedestal (3) through internal bearing cover (14); Bearing comprises cylinder roller bearing (9) and the deep groove ball bearing (12) that is installed on motor shaft (13) stiff end side by side, and is provided with bearing inner shield ring (11) and the outer back-up ring (10) of bearing between cylinder roller bearing (9) and deep groove ball bearing (12); Bearing end cover (6) inside is provided with oil leab A (15); Bearing pedestal (3) is provided with oil leab B (16); Be provided with cavity (17) in the internal bearing cover (14); Oil leab B (16) is communicated with oil leab A (15) and cavity (17), and the end face of deep groove ball bearing (12) is positioned at cavity (17), and bearing end cover (6) is provided with the pouring orifice (5) that is communicated with oil leab A (15).
2. a kind of novel wind generator bearing arrangement according to claim 1; It is characterized in that: outer back-up ring (10) inside of described bearing is provided with oil leab C (18); Also be provided with the lubricated oil duct (19) that divides in the bearing pedestal (3); Lubricated oil duct (19) one ends that divide are communicated with oil leab B (16), and lubricated oil duct (19) other end that divides is communicated with oil leab C (18), and the other end of oil leab C (18) is communicated with the end face of cylinder roller bearing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210212731.3A CN102723803B (en) | 2012-06-26 | 2012-06-26 | Novel wind driven generator bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210212731.3A CN102723803B (en) | 2012-06-26 | 2012-06-26 | Novel wind driven generator bearing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102723803A true CN102723803A (en) | 2012-10-10 |
| CN102723803B CN102723803B (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210212731.3A Expired - Fee Related CN102723803B (en) | 2012-06-26 | 2012-06-26 | Novel wind driven generator bearing structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN102723803B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401345A (en) * | 2013-07-31 | 2013-11-20 | 东方电气（乐山）新能源设备有限公司 | Novel bearing structure of wind driven generator |
| CN104963942A (en) * | 2015-06-11 | 2015-10-07 | 中国航空动力机械研究所 | Novel bearing lubricating structure |
| CN105186763A (en) * | 2015-10-15 | 2015-12-23 | 苏州萨伯工业设计有限公司 | Motor bearing structure |
| CN107023565A (en) * | 2017-05-23 | 2017-08-08 | 中达电机股份有限公司 | The lubrication system of blower fan bearing of explosion-proof motor |
| CN107061507A (en) * | 2017-05-23 | 2017-08-18 | 中达电机股份有限公司 | The lubrication system of the vertical threephase asynchronous bearing assembly of flame-proof type |
| CN112713693A (en) * | 2020-12-22 | 2021-04-27 | 上海电气集团上海电机厂有限公司 | High-rotating-speed heavy-load rolling bearing device installed at 45-degree inclination for motor |
| WO2023019661A1 (en) * | 2021-08-20 | 2023-02-23 | 西安中车永电捷力风能有限公司 | Parallel oil path structure for single-ended dual bearings and application thereof |
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| JPH0886317A (en) * | 1994-09-14 | 1996-04-02 | Toshiba Corp | Bearing device |
| JP2000083341A (en) * | 1998-09-03 | 2000-03-21 | Nippon Densan Corp | Bearing structure for motor |
| JP2006320083A (en) * | 2005-05-11 | 2006-11-24 | Toyota Motor Corp | Motor |
| CN101358683A (en) * | 2007-08-03 | 2009-02-04 | 大银微系统股份有限公司 | Bearing lubrication structure for direct-driving torque motor device |
| CN102185413A (en) * | 2011-05-13 | 2011-09-14 | 东方电气（乐山）新能源设备有限公司 | Bearing structure of 2-megawatt wind driven generator |
| CN202616917U (en) * | 2012-06-26 | 2012-12-19 | 东方电气（乐山）新能源设备有限公司 | Novel wind-driven generator bearing structure |
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2012
- 2012-06-26 CN CN201210212731.3A patent/CN102723803B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0886317A (en) * | 1994-09-14 | 1996-04-02 | Toshiba Corp | Bearing device |
| JP2000083341A (en) * | 1998-09-03 | 2000-03-21 | Nippon Densan Corp | Bearing structure for motor |
| JP2006320083A (en) * | 2005-05-11 | 2006-11-24 | Toyota Motor Corp | Motor |
| CN101358683A (en) * | 2007-08-03 | 2009-02-04 | 大银微系统股份有限公司 | Bearing lubrication structure for direct-driving torque motor device |
| CN102185413A (en) * | 2011-05-13 | 2011-09-14 | 东方电气（乐山）新能源设备有限公司 | Bearing structure of 2-megawatt wind driven generator |
| CN202616917U (en) * | 2012-06-26 | 2012-12-19 | 东方电气（乐山）新能源设备有限公司 | Novel wind-driven generator bearing structure |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401345A (en) * | 2013-07-31 | 2013-11-20 | 东方电气（乐山）新能源设备有限公司 | Novel bearing structure of wind driven generator |
| CN104963942A (en) * | 2015-06-11 | 2015-10-07 | 中国航空动力机械研究所 | Novel bearing lubricating structure |
| CN104963942B (en) * | 2015-06-11 | 2018-03-06 | 中国航空动力机械研究所 | A kind of novel bearing lubricating structure |
| CN105186763A (en) * | 2015-10-15 | 2015-12-23 | 苏州萨伯工业设计有限公司 | Motor bearing structure |
| CN105186763B (en) * | 2015-10-15 | 2018-11-27 | 苏州萨伯工业设计有限公司 | A kind of motor bearing structure |
| CN107023565A (en) * | 2017-05-23 | 2017-08-08 | 中达电机股份有限公司 | The lubrication system of blower fan bearing of explosion-proof motor |
| CN107061507A (en) * | 2017-05-23 | 2017-08-18 | 中达电机股份有限公司 | The lubrication system of the vertical threephase asynchronous bearing assembly of flame-proof type |
| CN112713693A (en) * | 2020-12-22 | 2021-04-27 | 上海电气集团上海电机厂有限公司 | High-rotating-speed heavy-load rolling bearing device installed at 45-degree inclination for motor |
| WO2023019661A1 (en) * | 2021-08-20 | 2023-02-23 | 西安中车永电捷力风能有限公司 | Parallel oil path structure for single-ended dual bearings and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102723803B (en) | 2014-04-02 |
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Granted publication date: 20140402 Termination date: 20160626 |