CN103062224B - A kind of leakproof fat wind-powered turntable bearing - Google Patents
A kind of leakproof fat wind-powered turntable bearing Download PDFInfo
- Publication number
- CN103062224B CN103062224B CN201310008552.2A CN201310008552A CN103062224B CN 103062224 B CN103062224 B CN 103062224B CN 201310008552 A CN201310008552 A CN 201310008552A CN 103062224 B CN103062224 B CN 103062224B
- Authority
- CN
- China
- Prior art keywords
- ring
- row
- inner ring
- fat
- raceway
- 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
Links
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
A kind of leakproof fat wind-powered turntable bearing, relate to wind power bearing technical field, comprise inner ring, outer ring, steel ball, spacing block and seal ring, in the die cavity that the raceway that steel ball is arranged on inner ring and outer ring is formed, spacing block is provided with between adjacent steel ball, seal ring is arranged between inner ring and outer ring, inner ring is provided with two row's raceways, row's raceway is wherein connected with fat hole by the fatty oil ditch that enters in raceway, another row's raceway is connected with row fat hole by the row's fatty oil ditch in raceway, fat hole is arranged radially on inner ring, be communicated with entering fatty oil ditch with the inner peripheral surface of inner ring, row's fatty oil ditch is communicated with the lower end surface of inner ring by row fat hole, gear alicyclic ring is provided with between seal ring and described die cavity.The present invention, by improving the structure in bearing row fat hole and setting up gear alicyclic structure, solves the leakage fat problem of wind-powered turntable bearing.
Description
Technical field
The present invention relates to wind power bearing technical field, refer more particularly to a kind of leakproof fat wind-powered turntable bearing.
Background technique
In the middle of the yaw system that wind-powered turntable bearing is used in wind power generating set and pitch-controlled system.Bearing is primarily of inner ring, outer ring, steel ball, retainer/spacing block and seal ring composition.Inner ring or outer ring are radially designed with fat hole and row fat hole, be respectively used to the filling of new lubricating grease and the discharge of waste and old lubricating grease, seal ring is used for the inside die cavity of bearing to be isolated from the outside to come, and avoids entering of the leakage of internal lubrication fat and external dust.Due to wind power generating set aloft work in the wild, wind-powered turntable bearing usually adopt concentrate automatically for fat device according to certain time interval to bearing supplemental lubrication fat, collect waste and old grease by oil-collecting bottle.
For fat device with certain pressure by grease adding in bearing race die cavity, at waste and old lubricating grease in the discharge process of oil-collecting bottle, need to overcome certain row's fat hole and arrange fat pipe resistance just can enter into oil-collecting bottle, along with the accumulation of lubricating grease in Bearing inner die cavity, the grease pressure in bearing race die cavity also increases thereupon.In addition, the turntable bearing level of yaw system is arranged on tower cylinder top, and lubricating grease deposits to the bottom of Bearing inner die cavity in the effect of self gravitation, to lower seal build-up of pressure.For pitch variable bearings, in the rotation process of wind wheel, due to the effect of centrifugal force, lubricating grease is thrown to the one end away from wind wheel gyration center in Bearing inner die cavity, and to the seal ring build-up of pressure of this end.
And at present, existing wind-powered turntable bearing, its structure is as accompanying drawing 1, can find out there is no safeguard structure between lubricating grease and seal ring, grease pressure directly acts on seal ring, because seal ring is manufactured by rubber material, be easy to produce distortion under the effect of bearing race die cavity grease pressure and cause the leakage of lubricating grease.And row's fat hole of existing wind-powered turntable bearing is arrange along the radial direction of bearing completely, is unfavorable for the discharge of lubricating grease, can increases the pressure of Bearing inner die cavity like this, impel the leakage of lubricating grease.The leakage fat phenomenon of wind-powered turntable bearing not only has influence on the lubrication effect of bearing, and waste lubricating grease, returns host computer of wind-driven electric generator and bring very large pollution.
Summary of the invention
In order to solve the problem, the invention provides a kind of leakproof fat wind-powered turntable bearing, the leakage of lubricating grease can be prevented preferably.
In order to achieve the above object, technological scheme of the present invention is: a kind of leakproof fat wind-powered turntable bearing, comprise inner ring, outer ring, steel ball, spacing block and seal ring, in the die cavity that the raceway that steel ball is arranged on inner ring and outer ring is formed, spacing block is provided with between adjacent steel ball, seal ring is arranged between inner ring and outer ring, inner ring is provided with two row's raceways, row's raceway is wherein connected with fat hole by the fatty oil ditch that enters in raceway, another row's raceway is connected with row fat hole by the row's fatty oil ditch in raceway, fat hole is arranged radially on inner ring, be communicated with entering fatty oil ditch with the inner peripheral surface of inner ring, row's fatty oil ditch is communicated with the lower end surface of inner ring by row fat hole.
Described row's fat hole is made up of the radial section intersected vertically and axial direction part.
The length of the radial section in described row's fat hole is less than the length of axial direction part.
Gear alicyclic ring is provided with between described seal ring and described die cavity.
Described gear alicyclic ring is arranged on the outer peripheral surface of inner ring, and it is a bulge loop.
Described gear alicyclic ring is arranged on the inner peripheral surface of outer ring, and it is a bulge loop.
Described seal ring is double-lip sealing ring, and the mounting strap of double-lip sealing ring is arranged in the rectangle mounting groove that matches with it in inner ring or outer ring, and another circle of bearing is provided with the arcuation raised band matched with the sealing lip of seal ring.The rectangle mounting groove matched with the mounting strap of seal ring and described gear alicyclic ring, one is located on the inner ring of bearing, and one is located on the outer ring of bearing.
The inner ring of described leakproof fat wind-powered turntable bearing is radially provided with dress ball, the raceway of inner ring is in communication with the outside by dress ball, be provided with stopper in dress ball, inner ring is provided with vertically the taper pin-hole running through stopper, stopper is radially fixed by the taper pin be arranged in taper pin-hole.The axial screw thread counterbore outer ring of bearing being designed with the gear teeth and along the circumferential direction evenly arranging.The inner ring of bearing is circumferentially evenly provided with axial hole, and this some holes is used for bearing and is connected with the installation of main frame.
Beneficial effect: the present invention is provided with gear alicyclic ring between bearing sealed ring and the die cavity of bearing race, gear alicyclic ring is in order to bear the pressure effect of lubricating grease in bearing die cavity, avoid the direct pressure effect of lubricating grease to seal ring, thus the pressure effect eliminated due to lubricating grease makes sealed ring deformation and the lubricating grease leakage phenomenon caused; And gear alicyclic ring and seal ring are positioned at inside and outside two of bearing and encloses, on the contrary, formation loop, labyrinth, is effectively isolated from the outside out the inside die cavity of bearing, avoids entering of external dust in both directions.Simultaneously, the structure in the row's of present invention improves over fat hole, the fat end that goes out in the row's of making fat hole has been located on the lower end surface of inner ring, more specifically row's fat hole is designed to be made up of radial section and axial direction part two sections, and the length of radial section is enough short, the axial direction part in such row's fat hole can utilize the gravity of lubricating grease or centrifugal force easily waste and old grease to be got rid of, and from the pressure reducing lubricating grease in bearing die cavity, serves the effect preventing lubricating grease from revealing from seal ring further.
Accompanying drawing explanation
Fig. 1 is the axial section structural representation of existing wind-powered turntable bearing.
Fig. 2 is the axial section structural representation of leakproof fat wind-powered turntable bearing of the present invention.
Fig. 3 is the partial enlarged drawing arranging fat hole place in Fig. 2.
Fig. 4 is the partial enlarged drawing at gear alicyclic ring place, Fig. 2 middle (center) bearing top.
Be labeled as in figure: 1, outer ring, 2, steel ball, 3, spacing block, 4, seal ring, 5, inner ring, 6, gear alicyclic ring, 7, enter fatty oil ditch, 8, fat hole, 9, row fat hole, 10, row's fatty oil ditch, 11, stopper, 12, taper pin.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 2, a kind of leakproof fat wind-powered turntable bearing, comprise inner ring 5, outer ring 1, steel ball 2, spacing block 3 and seal ring 4, in the die cavity that the raceway that steel ball 2 is arranged on inner ring 5 and outer ring 1 is formed, spacing block 3 is provided with between adjacent steel ball 2, seal ring 4 is arranged between inner ring 5 and outer ring 1, inner ring 5 is provided with two row's raceways, row's raceway is wherein connected with fat hole 8 by the fatty oil ditch 7 that enters in raceway, another row's raceway is connected with row fat hole 9 by the row's fatty oil ditch 10 in raceway, fat hole 8 is arranged radially on inner ring 5, be communicated with entering the inner peripheral surface of fatty oil ditch 7 with inner ring 5, row's fatty oil ditch 10 is communicated with the lower end surface of inner ring 5 by row fat hole 9.
Particularly, described row's fat hole 9 is made up of the radial section intersected vertically and axial direction part, and the length of radial section is less than the length of axial direction part, such structure makes the lubricating grease in bearing die cavity that the centrifugal force in himself gravity or rotation process can be utilized to discharge from the lower end surface of inner ring 5 easily, reduce the pressure of lubricating grease in bearing die cavity, serve the effect preventing lubricating grease from revealing from seal ring.
Be provided with between described seal ring 4 and described die cavity and keep off alicyclic ring 6, on the outer peripheral surface that gear alicyclic ring 6 is arranged on inner ring 5 or be arranged on the inner peripheral surface of outer ring 1, it is a bulge loop.Gear alicyclic ring replaces seal ring to bear the pressure effect of lubricating grease, thus the pressure effect avoided due to lubricating grease makes sealed ring deformation, plays the effect of leakproof fat.
Described seal ring 4 is double-lip sealing ring, and the mounting strap of double-lip sealing ring is arranged in the rectangle mounting groove that matches with it in inner ring 5 or outer ring 1, and another circle of bearing is provided with the arcuation raised band matched with the sealing lip of seal ring.The rectangle mounting groove matched with the mounting strap of seal ring and described gear alicyclic ring 6, are located on the inner ring 5 of bearing, and one is located on the outer ring 1 of bearing.
The inner ring 5 of described leakproof fat wind-powered turntable bearing is radially provided with dress ball, the raceway of inner ring 5 is in communication with the outside by dress ball, be provided with stopper 11 in dress ball, inner ring 5 is provided with vertically the taper pin-hole running through stopper 11, stopper 11 is radially fixed by the taper pin 12 be arranged in taper pin-hole.The axial screw thread counterbore outer ring 1 of bearing being designed with the gear teeth and along the circumferential direction evenly arranging.The inner ring 5 of bearing is circumferentially evenly provided with axial hole, and this some holes is used for bearing and is connected with the installation of main frame.
Claims (3)
1. a leakproof fat wind-powered turntable bearing, comprise inner ring (5), outer ring (1), steel ball (2), spacing block (3) and seal ring (4), in the die cavity that the raceway that steel ball (2) is arranged on inner ring (5) and outer ring (1) is formed, spacing block (3) is provided with between adjacent steel ball (2), seal ring (4) is arranged between inner ring (5) and outer ring (1), inner ring (5) is provided with two row's raceways, row's raceway is wherein connected with fat hole (8) by the fatty oil ditch (7) that enters in raceway, another row's raceway is connected with row fat hole (9) by the row's fatty oil ditch (10) in raceway, it is characterized in that: fat hole (8) is arranged radially on inner ring (5), be communicated with entering the inner peripheral surface of fatty oil ditch (7) with inner ring (5), row fat hole (9) is communicated with arranging the lower end surface of fatty oil ditch (10) with inner ring (5), in order to utilize the gravity suffered by grease or the centrifugal force in rotation process, waste and old grease is discharged, row fat hole (9) is made up of the radial section intersected vertically and axial direction part, the length of radial section is less than the length of axial direction part, be provided with between seal ring (4) and described die cavity and keep off alicyclic ring (6).
2. a kind of leakproof fat wind-powered turntable bearing as claimed in claim 1, is characterized in that: described gear alicyclic ring (6) is arranged on the outer peripheral surface of inner ring (5).
3. a kind of leakproof fat wind-powered turntable bearing as claimed in claim 1, is characterized in that: described gear alicyclic ring (6) is arranged on the inner peripheral surface of outer ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310008552.2A CN103062224B (en) | 2013-01-10 | 2013-01-10 | A kind of leakproof fat wind-powered turntable bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310008552.2A CN103062224B (en) | 2013-01-10 | 2013-01-10 | A kind of leakproof fat wind-powered turntable bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103062224A CN103062224A (en) | 2013-04-24 |
| CN103062224B true CN103062224B (en) | 2015-12-02 |
Family
ID=48105022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310008552.2A Expired - Fee Related CN103062224B (en) | 2013-01-10 | 2013-01-10 | A kind of leakproof fat wind-powered turntable bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103062224B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286793B (en) * | 2013-05-21 | 2016-07-06 | 浙江万丰科技开发股份有限公司 | A kind of robot palletizer |
| CN104141684B (en) * | 2014-01-09 | 2016-08-17 | 成都绿迪科技有限公司 | Hydraulic self-adapting formula ball bearing |
| CN107448481B (en) * | 2017-09-15 | 2019-03-29 | 东方电气风电有限公司 | A kind of blower turntable bearing leakproof rouge sealing structure |
| CN108007785A (en) * | 2017-12-22 | 2018-05-08 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Wind power bearing sealing ring voltage endurance capability test fixture and method |
| DE102018210088A1 (en) * | 2018-06-21 | 2019-12-24 | Aktiebolaget Skf | Bearing arrangement with an improved sealing ring |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201475162U (en) * | 2009-09-01 | 2010-05-19 | 常州光洋轴承有限公司 | Special bearing for yaw system of megawatt wind turbine |
| WO2012004272A1 (en) * | 2010-07-06 | 2012-01-12 | Aktiebolaget Skf | Passage for grease in flanged bearings |
| WO2012126529A1 (en) * | 2011-03-24 | 2012-09-27 | Aktiebolaget Skf | Angular contact roller bearing, notably used in a wind turbine |
| WO2012136632A1 (en) * | 2011-04-05 | 2012-10-11 | Rothe Erde Gmbh | Oil-lubricated anti-friction bearing |
| CN203067553U (en) * | 2013-01-10 | 2013-07-17 | 河南科技大学 | Grease leakage proof type wind power turntable bearing |
-
2013
- 2013-01-10 CN CN201310008552.2A patent/CN103062224B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201475162U (en) * | 2009-09-01 | 2010-05-19 | 常州光洋轴承有限公司 | Special bearing for yaw system of megawatt wind turbine |
| WO2012004272A1 (en) * | 2010-07-06 | 2012-01-12 | Aktiebolaget Skf | Passage for grease in flanged bearings |
| WO2012126529A1 (en) * | 2011-03-24 | 2012-09-27 | Aktiebolaget Skf | Angular contact roller bearing, notably used in a wind turbine |
| WO2012136632A1 (en) * | 2011-04-05 | 2012-10-11 | Rothe Erde Gmbh | Oil-lubricated anti-friction bearing |
| CN203067553U (en) * | 2013-01-10 | 2013-07-17 | 河南科技大学 | Grease leakage proof type wind power turntable bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103062224A (en) | 2013-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103062224B (en) | A kind of leakproof fat wind-powered turntable bearing | |
| US8057184B2 (en) | Propeller blade bearing, especially for propeller blades of aircraft propellers that can be adjusted along their longitudinal axis | |
| CN201475162U (en) | Special bearing for yaw system of megawatt wind turbine | |
| CN205331209U (en) | High -efficient antifriction bearing | |
| CN106451893A (en) | Novel bearing chamber structure of motor | |
| CN203067553U (en) | Grease leakage proof type wind power turntable bearing | |
| CN206111861U (en) | A bearing lubricating structure for wind -powered electricity generation acceleration rate case | |
| CN204851521U (en) | Tidal power generation unit and become oar bearing thereof | |
| CN104295882B (en) | Waste lubricating grease collecting structure of wind driven generator spindle bearing | |
| CN2926601Y (en) | Circulation lubricating bearing device | |
| CN107143743A (en) | Pitch variable bearings waste oil collecting device and its use its offshore wind generating | |
| CN206563037U (en) | A kind of new many lip wind-powered turntable bearing sealing rings | |
| CN212563540U (en) | Be used for wind generating set driftage bearing, become lubricated oil circuit structure of oar bearing | |
| CN202768645U (en) | Combined and sealed bearing block | |
| CN207010429U (en) | A kind of double-fed wind power generator bearing arranges fat structure | |
| CN204512378U (en) | Seal arrangement between central shaft and gear box end cover | |
| CN204471068U (en) | Leading screw rotating nut lubrication system | |
| CN204175809U (en) | A kind of bearing support adopting labyrinth ring seal ring | |
| CN206817140U (en) | Pitch variable bearings waste oil collecting device and its use its offshore wind generating | |
| CN203348318U (en) | Bearing component for vertical pump | |
| CN203362843U (en) | Bearing lubrication structure of wind driven generator | |
| CN204082896U (en) | A kind of high-mechanic noise free gear-bearing | |
| CN203082182U (en) | Vertical shaft oil baffle disc sealing assembly | |
| CN208595821U (en) | A kind of novel circular cooler bogie wheel lubrication system | |
| CN210511000U (en) | Electrophoresis oven adversion wheel lubricating arrangement |
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 | ||
| 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: 20151202 Termination date: 20170110 |