CN102808857A - Bearing assembly on transmission shaft of wind driven generator - Google Patents
Bearing assembly on transmission shaft of wind driven generator Download PDFInfo
- Publication number
- CN102808857A CN102808857A CN2012102889463A CN201210288946A CN102808857A CN 102808857 A CN102808857 A CN 102808857A CN 2012102889463 A CN2012102889463 A CN 2012102889463A CN 201210288946 A CN201210288946 A CN 201210288946A CN 102808857 A CN102808857 A CN 102808857A
- Authority
- CN
- China
- Prior art keywords
- bearing
- transmission shaft
- ring
- driven generator
- wind
- 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.)
- Granted
Links
Images
Classifications
-
- 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
Landscapes
- Wind Motors (AREA)
Abstract
The invention relates to a bearing assembly on a transmission shaft of a wind driven generator. The bearing assembly comprises a bearing block fixed on a base; a bearing capable of axially moving along with the transmission shaft is arranged in the bearing block; and a bearing end cap is arranged on one side of the bearing block. The technical scheme includes that an elastic device is arranged between an outer ring of the bearing and the bearing end cap and comprises a thrust ring arranged on one side of the outer ring of the bearing, and a plurality of elastic units are arranged on an end surface of the thrust ring. By the elastic device, the outer ring of the bearing is axially compacted on the bearing end cap, so that the bearing bears part of axial force, and bearing load of a fixed bearing on the transmission shaft can be reduced.
Description
[technical field]
The present invention relates to a kind of bearing unit, particularly the bearing unit on the wind-driven generator transmission shaft.
[background technique]
The mean level axis wind power generator is in its transmission system, in order to guarantee the running precision of blower fan; Generator usually adopts two bearing supporting drive shafts when transmission because its working environment temperature difference of generator is bigger, so its expand with heat and contract with cold make elongate axis, shrink apparent in view; For transmission shaft is stuck when expanding with heat and contract with cold variation, one of them bearing is for fixing, and another bearing can be along with the transmission shaft axial stretching; It does not axially contact with pedestal, therefore can not bear axial force.The nearly all at work axial force of generator all acts on the fixed end bearing like this.Since generator when work its axial force very big, single bearing load carrying capacity is limited, causes the fixed end bearing axial load factor of some blower fans and loses efficacy in advance, causes motor not run well.
[summary of the invention]
The objective of the invention is to overcome the deficiency of existing technology, provide a kind of simple in structure, can and can carry the bearing unit on the wind-driven generator transmission shaft of axial force with the transmission shaft axial stretching.
In order to address the above problem, the present invention adopts following technological scheme:
Bearing unit on a kind of wind-driven generator transmission shaft; Comprise the bearing support that is fixed on the pedestal; Being provided with in the described bearing support can be with the axially movable bearing of transmission shaft; Described bearing support one side is provided with bearing (ball) cover, it is characterized in that: be provided with elastic device between the outer ring of described bearing and the bearing (ball) cover.
Bearing unit on aforesaid a kind of wind-driven generator transmission shaft is characterized in that: described elastic device comprises the thrust ring that is located at described bearing outer ring one side, and described thrust ring end face is provided with a plurality of Flexible elements.
Bearing unit on aforesaid a kind of wind-driven generator transmission shaft; It is characterized in that: described Flexible element comprises the ccontaining cover of elastic component that is located on the described thrust ring end face; Be provided with elastic component in the ccontaining cover of described elastic component, described elastic component is provided with it is suppressed the compressing member on described bearing (ball) cover.
Bearing unit on aforesaid a kind of wind-driven generator transmission shaft is characterized in that: described elastic component is a butterfly spring.
Bearing unit on aforesaid a kind of wind-driven generator transmission shaft is characterized in that: be provided with in the ccontaining cover of described elastic component with described compressing member and elastic component axial compression screw.
Bearing unit on aforesaid a kind of wind-driven generator transmission shaft; It is characterized in that: be set with an end on the described transmission shaft and axially be pressed against on the described transmission shaft; The other end is pressed against first inner shield ring on the described bearing inner race; With second inner shield ring that presses the described bearing inner race the other end, and with the locking nut of described second inner shield ring, bearing inner race, the first inner shield ring axial compression.
Bearing unit on aforesaid a kind of wind-driven generator transmission shaft is characterized in that: the described second inner shield ring excircle is provided with two circle grooves, is provided with the seal ring that described bearing (ball) cover is clamped in the described groove.
Beneficial effect of the present invention has: transmission shaft drives bearing away from bearing (ball) cover when heat expansion is extended, and elastic device recovers deformation, and bearing outer ring can be passed to bearing (ball) cover with axial force through elastic device, can bear section axial power; Thrust ring is provided with a plurality of butterfly springs, makes the elastic device elastic force bigger, can bear bigger axial force, improves working life.
[description of drawings]
Fig. 1 cuts open figure for master of the present invention;
Fig. 2 is the I portion enlarged view of Fig. 1;
Fig. 3 is a component diagram of the present invention;
Fig. 4 is a user mode reference drawing of the present invention.
[embodiment]
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
To shown in Figure 3, the bearing unit on a kind of wind-driven generator transmission shaft comprises the bearing support 1 that is fixed on the pedestal like Fig. 1; Being provided with in the bearing support 1 can be with the axially movable bearing 2 of transmission shaft 3; Bearing 2 can be biserial garden awl roller selfaligning bearing, and bearing support 1 is a Spielpassung with bearing 2, bearing 2 and transmission shaft 3 interference fit; Transmission shaft 3 is flexible when expanding with heat and contract with cold like this, will drive bearing 2 and move axially with respect to bearing support 1.Being set with an end on the transmission shaft 3 axially is pressed against on the transmission shaft 3; The other end is pressed against first inner shield ring 6 on bearing 2 inner rings; With second inner shield ring 7 that presses the described bearing 2 inner ring the other ends; And, can prevent that like this bearing 2 from sliding with respect to transmission shaft 3 with the locking nut 8 of second inner shield ring 7, bearing 2 inner rings, first inner shield ring, 6 axial compression.Second inner shield ring, 7 excircles are provided with two circle grooves 71, are provided with the seal ring 72 that bearing (ball) cover 4 is clamped in the groove 71.Bearing support 1 one sides are provided with bearing (ball) cover 4; Be provided with elastic device 5 between the outer ring of bearing 2 and the bearing (ball) cover 4; Elastic device 5 comprises the thrust ring 51 that is located at bearing 2 outer rings one side, and thrust ring 51 end faces are provided with a plurality of Flexible elements 52, and Flexible element 52 comprises the ccontaining cover 56 of the elastic component that is located on thrust ring 51 end faces; Be provided with elastic component 53 in the ccontaining cover 56 of elastic component; Elastic component 53 can be butterfly spring, and elastic component 53 is provided with it is suppressed the compressing member 54 on bearing (ball) cover 4, be provided with in the ccontaining cover 56 of elastic component with compressing member 54 and elastic component 53 axial compression screw 55.Through many groups butterfly spring the axial force of bearing 2 outer rings is reached bearing (ball) cover 4 like this, bearing (ball) cover 4 is fixed on the pedestal.
As shown in Figure 4 during use; This bearing unit is installed in the bigger diameter end of transmission shaft 2, promptly is the blade of wind-driven generator end, and bearing (ball) cover 4 is installed in the side away from blade; Rigid bearing 9 then is fixedly mounted on an other end of transmission shaft 2; Promptly be an end of uni-drive gear box,, make bearing bear larger axis to power owing to produce large wind during the rotation of blade.Because the outer ring of bearing 2 is passed to bearing (ball) cover 4 through elastic device 5 with axial force, bearing (ball) cover 4 is fixed on the bearing support 1; Bearing support 1 is fixed on the pedestal, therefore can axial force be given to pedestal, bears section axial power; Alleviate bearing burdens of rigid bearing 9, improve working life.
Claims (7)
1. the bearing unit on the wind-driven generator transmission shaft; Comprise the bearing support (1) that is fixed on the pedestal; Being provided with in the described bearing support (1) can be with the axially movable bearing (2) of transmission shaft (3); Described bearing support (1) one side is provided with bearing (ball) cover (4), it is characterized in that: be provided with elastic device (5) between the outer ring of described bearing (2) and the bearing (ball) cover (4).
2. the bearing unit on a kind of wind-driven generator transmission shaft according to claim 1; It is characterized in that: described elastic device (5) comprises the thrust ring (51) that is located at described bearing (2) outer ring one side, and described thrust ring (51) end face is provided with a plurality of Flexible elements (52).
3. the bearing unit on a kind of wind-driven generator transmission shaft according to claim 1; It is characterized in that: described Flexible element (52) comprises the ccontaining cover of elastic component (56) that is located on described thrust ring (51) end face; Be provided with elastic component (53) in the ccontaining cover of described elastic component (56), described elastic component (53) is provided with it is suppressed the compressing member (54) on described bearing (ball) cover (4).
4. the bearing unit on a kind of wind-driven generator transmission shaft according to claim 3 is characterized in that: described elastic component (53) is a butterfly spring.
5. the bearing unit on a kind of wind-driven generator transmission shaft according to claim 3 is characterized in that: be provided with in the ccontaining cover of described elastic component (56) with described compressing member (54) and elastic component (53) axial compression screw (55).
6. the bearing unit on a kind of wind-driven generator transmission shaft according to claim 1; It is characterized in that: be set with an end on the described transmission shaft (3) and axially be pressed against on the described transmission shaft (3); The other end is pressed against first inner shield ring (6) on described bearing (2) inner ring; With second inner shield ring (7) that presses described bearing (2) the inner ring the other end, and with the locking nut (8) of described second inner shield ring (7), bearing (2) inner ring, first inner shield ring (6) axial compression.
7. the bearing unit on a kind of wind-driven generator transmission shaft according to claim 5; It is characterized in that: described second inner shield ring (7) excircle is provided with two circle grooves (71), is provided with the seal ring (72) that described bearing (ball) cover (4) is clamped in the described groove (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210288946.3A CN102808857B (en) | 2012-08-14 | 2012-08-14 | Bearing assembly on transmission shaft of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210288946.3A CN102808857B (en) | 2012-08-14 | 2012-08-14 | Bearing assembly on transmission shaft of wind driven generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102808857A true CN102808857A (en) | 2012-12-05 |
| CN102808857B CN102808857B (en) | 2015-05-20 |
Family
ID=47232675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210288946.3A Active CN102808857B (en) | 2012-08-14 | 2012-08-14 | Bearing assembly on transmission shaft of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102808857B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295749A (en) * | 2014-09-29 | 2015-01-21 | 内蒙古久和能源科技有限公司 | Bearing sealing device |
| CN108506377A (en) * | 2017-05-23 | 2018-09-07 | 太仓市伦文机械有限公司 | A kind of brake apparatus |
| CN109973336A (en) * | 2017-12-20 | 2019-07-05 | 森维安有限公司 | Wind power plant with power train |
| CN113431747A (en) * | 2021-07-08 | 2021-09-24 | 辽宁中科经创智慧能源有限公司 | Hydraulically controlled bearing load transfer device |
| CN113931935A (en) * | 2021-11-22 | 2022-01-14 | 北京高孚动力科技有限公司 | Magnetic suspension bearing elastic damping protection bearing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4227755A (en) * | 1977-10-24 | 1980-10-14 | Stal Refrigeration Ab | Bearing arrangement for shaft of rotary compressor |
| JPS58196320A (en) * | 1982-05-13 | 1983-11-15 | Toshiba Corp | Bearing creep preventive device |
| JPH0589948U (en) * | 1992-05-08 | 1993-12-07 | 光洋精工株式会社 | Constant preload double row tapered roller bearing device |
| DE10300952A1 (en) * | 2003-01-13 | 2004-07-22 | Siemens Ag | Electric machine, especially converter-fed slip-ring rotor motor for wind-power generator, uses insulating material sleeve for shaft carrying bearing assembly |
| JP2006162011A (en) * | 2004-12-09 | 2006-06-22 | Nsk Ltd | Rolling bearing with pre-load mechanism |
| CN1947323A (en) * | 2004-04-29 | 2007-04-11 | 西门子公司 | Electrical machine and its bearings |
| CN202971606U (en) * | 2012-08-14 | 2013-06-05 | 广东明阳风电产业集团有限公司 | Novel bearing assembly on driving shaft of wind driven generator |
-
2012
- 2012-08-14 CN CN201210288946.3A patent/CN102808857B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4227755A (en) * | 1977-10-24 | 1980-10-14 | Stal Refrigeration Ab | Bearing arrangement for shaft of rotary compressor |
| JPS58196320A (en) * | 1982-05-13 | 1983-11-15 | Toshiba Corp | Bearing creep preventive device |
| JPH0589948U (en) * | 1992-05-08 | 1993-12-07 | 光洋精工株式会社 | Constant preload double row tapered roller bearing device |
| DE10300952A1 (en) * | 2003-01-13 | 2004-07-22 | Siemens Ag | Electric machine, especially converter-fed slip-ring rotor motor for wind-power generator, uses insulating material sleeve for shaft carrying bearing assembly |
| CN1947323A (en) * | 2004-04-29 | 2007-04-11 | 西门子公司 | Electrical machine and its bearings |
| JP2006162011A (en) * | 2004-12-09 | 2006-06-22 | Nsk Ltd | Rolling bearing with pre-load mechanism |
| CN202971606U (en) * | 2012-08-14 | 2013-06-05 | 广东明阳风电产业集团有限公司 | Novel bearing assembly on driving shaft of wind driven generator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295749A (en) * | 2014-09-29 | 2015-01-21 | 内蒙古久和能源科技有限公司 | Bearing sealing device |
| CN104295749B (en) * | 2014-09-29 | 2016-09-21 | 内蒙古久和能源装备有限公司 | A kind of associated sealing arrangement for bearings |
| CN108506377A (en) * | 2017-05-23 | 2018-09-07 | 太仓市伦文机械有限公司 | A kind of brake apparatus |
| CN109973336A (en) * | 2017-12-20 | 2019-07-05 | 森维安有限公司 | Wind power plant with power train |
| CN113431747A (en) * | 2021-07-08 | 2021-09-24 | 辽宁中科经创智慧能源有限公司 | Hydraulically controlled bearing load transfer device |
| CN113931935A (en) * | 2021-11-22 | 2022-01-14 | 北京高孚动力科技有限公司 | Magnetic suspension bearing elastic damping protection bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102808857B (en) | 2015-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10294990B2 (en) | Linear motion guide device | |
| CN102808857B (en) | Bearing assembly on transmission shaft of wind driven generator | |
| CN202971606U (en) | Novel bearing assembly on driving shaft of wind driven generator | |
| CN103542055A (en) | Swivel nut combination unit | |
| CN109099128A (en) | A kind of bearing screw driven system | |
| CN1743690A (en) | Universal assembled angle contact ball bearing and its manufacturing method | |
| CN103441608A (en) | Electric cylinder anti-rotation mechanism | |
| CN208185236U (en) | A kind of self-aligning roller bearing structure | |
| CN103104617A (en) | Main bearing sealing system for wind generating set | |
| CN106505792A (en) | There is the electric motor of automobile component of double rolling bearing structure | |
| CN202451729U (en) | Ball screw assembly supporting structure | |
| CN215110085U (en) | Movable multi-spring-plate air bearing | |
| CN201663508U (en) | High-speed precise electric main shaft | |
| CN204339412U (en) | A kind of ball-screw end spring bearing configuration structure of high speed feed axle | |
| CN201774356U (en) | Constant pressure preloading device for main shaft bearings of high-speed built-in motor | |
| CN209818532U (en) | Special self-aligning roller bearing for coal mining machine | |
| CN216540869U (en) | Aerostatic ceramic ball composite bearing electric spindle | |
| CN208966966U (en) | A kind of bearing screw driven system | |
| CN203092675U (en) | Head saw spindle component structure of sliding table saw | |
| CN203434786U (en) | Bearing structure of motor | |
| CN102797752B (en) | Multi-blade oil-lubricated foil bearing supported by horizontal springs | |
| CN201928118U (en) | Stabilizing bearing for cylinder linear motor | |
| CN217874033U (en) | Axially supported ball screw | |
| CN204941932U (en) | A kind of oil-free vortex air compressor | |
| CN202326761U (en) | Novel bearing bracket assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 528437 Torch Road, Torch Development Zone, Guangdong, Zhongshan, No. 22 Patentee after: Ming Yang wisdom Energy Group AG Address before: 528400 Torch Industrial Zone, Ming Yang Industrial Zone, Torch Development Zone, Guangdong, Zhongshan, 22 Patentee before: Guangdong Mingyang Wind Power Group Co., Ltd. |