CN201610894U - Turntable bearing for wind generator - Google Patents

Turntable bearing for wind generator Download PDF

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Publication number
CN201610894U
CN201610894U CN2009203170808U CN200920317080U CN201610894U CN 201610894 U CN201610894 U CN 201610894U CN 2009203170808 U CN2009203170808 U CN 2009203170808U CN 200920317080 U CN200920317080 U CN 200920317080U CN 201610894 U CN201610894 U CN 201610894U
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CN
China
Prior art keywords
bearing
face
double
ring
sealing ring
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
Application number
CN2009203170808U
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Chinese (zh)
Inventor
许正根
李媛媛
戴天任
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Luoyang Bearing Science and Technology Co Ltd
Original Assignee
Luoyang Bearing Science and Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Luoyang Bearing Science and Technology Co Ltd filed Critical Luoyang Bearing Science and Technology Co Ltd
Priority to CN2009203170808U priority Critical patent/CN201610894U/en
Application granted granted Critical
Publication of CN201610894U publication Critical patent/CN201610894U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

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  • Rolling Contact Bearings (AREA)

Abstract

The utility model discloses a turntable bearing for a wind generator, comprising an inner ball race, an outer ball race and steel balls clamped between the opposed periphery surfaces of inner and outer ball races, a first end face of the inner ball race is protruded on a first end face of the outer ball race, a second end face of the inner ball race is arranged under a second end face of the outer ball race, a first double-lip sealing ring is assembled between the outer circumferential surface of the inner ball race adjacent to the first end face and the corresponding inner circumferential surface of the outer ball race, a second double-lip sealing ring is assembled between the inner circumferential surface of the outer ball race adjacent to the second end face and the corresponding outer circumferential surface of the inner ball race. According to the utility model, the upper portion and the lower part of the bearing are sealed in a double-lip contact mode, even the outside seal of the bearing is exposed out in the field, the better dust-proof, water-proof, aging-proof and anti-falling effect can be achieved.

Description

The wind-driven generator turntable bearing
Technical field
The utility model relates to a kind of large-scale turntable bearing, is mainly used in the wind-driven generator pitching system.
Background technique
The turntable bearing that becomes the slurry system is the critical component of wind-driven generator pitching system.It is installed on the root of blade, is used for accurately in time adjusting the angle of facining the wind of blower fan.This turntable bearing is worked in the high altitude environment throughout the year in the open air, and working condition is abominable, requires the turntable bearing of pitch-controlled system to have enough intensity and bearing capacity, operates steadily, high reliability, long lifetime lubricated, anticorrosion and favorable sealing property.
The model utility content
The purpose of this utility model be to provide a kind of good airproof performance, operate steadily be used for the turntable bearing that wind-driven generator becomes the slurry system.
The technical solution of the utility model is: a kind of wind-driven generator turntable bearing, comprise bearing inner race, bearing outer ring and be folded in steel ball between the relative side face of the inside and outside circle of bearing, first end face of bearing inner race is convexly set in more than bearing outer ring first end face, and second end face of bearing inner race is heavy to be located at below bearing outer ring second end face; Be equipped with first double-lip sealing ring between near first end face of bearing inner race outer circumferential face and the corresponding bearing outer ring inner peripheral surface, be extended with set identical cooperation of arc convex on the symmetrical lip limit of separating gradually the outer end and the described bearing inner race outer circumferential face to its inside on the inner peripheral surface of first double-lip sealing ring; Be equipped with second double-lip sealing ring between near second end face of bearing outer ring inner peripheral surface and the corresponding bearing inner race outer circumferential face, be extended with set identical cooperation of arc convex on the symmetrical lip limit of separating gradually the outer end and the described bearing inner race to its outside on the outer circumferential face of second double-lip sealing ring.
Convex with the axial limiting projection on another side face of described first and second double-lip sealing ring with respect to place, lip limit side face, convex with radially spacing hangnail on the end face of the close axial limiting projection of first and second double-lip sealing ring, the corresponding side face of the inner ring of described bearing, outer ring is provided with the groove that coincide and cooperate with described axial limiting projection and radially spacing hangnail.
Between the inner, two lip limits of described first, second double-lip sealing ring all by the interior concaved circular cambered surface transition on the seal ring inner peripheral surface.
Radially offer the dress ball hole that connects its inside and outside side face on the described bearing outer ring and be inserted with ball blocking block therein, be equipped with O-ring seals between ball blocking block and the dress ball hole, ball blocking block is a cylindricality, the inner is provided with the peach shape inner concave arc surface with the steel ball corresponding matching, also axially offers on the bearing outer ring to connect its two ends and the pin-and-hole that communicates with described dress ball hole and be inserted with the taper pin of wearing described ball blocking block therein.
The lips contact seal is adopted in the upper and lower of bearing of the present utility model, outside the sealing of bearing outside all is exposed to when using, also can reach better dustproof, waterproof, anti-aging and Drop-proof effect in the open air.
In addition, around the O RunddichtringO, can prevent effectively that outside rainwater from entering bearing inside on the ball blocking block external diameter of the present utility model, prolong bearing life.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of ball blocking block among Fig. 1;
Fig. 3 is the cooperating structure schematic representation of first double-lip sealing ring and bearing among Fig. 1;
Fig. 4 is the cooperating structure schematic representation of second double-lip sealing ring and bearing among Fig. 1.
Embodiment
As Fig. 1~shown in Figure 4, turntable bearing of the present utility model comprises bearing inner race 1, bearing outer ring 2 and being folded in the bearing, the steel ball 3 that biserial between the relative side face in outer ring distributes, radially offer on the bearing outer ring 2 and connect in it, the dress ball hole of outer circumferential face also is inserted with ball blocking block 5 therein, ball blocking block 5 is a cylindricality, be equipped with O-ring seals 6 between ball blocking block 5 and the dress ball hole, the inner is provided with the peach shape inner concave arc surface with the steel ball corresponding matching, also axially offers on the bearing outer ring 2 to connect its two ends, and the pin-and-hole that communicates with described dress ball hole also is inserted with the taper pin 4 of wearing described ball blocking block 5 therein.First end face of bearing inner race 1 is convexly set in more than 2 first end faces of outer ring, be equipped with first double-lip sealing ring 8 between near first end face of bearing inner race 1 the outer circumferential face and the inner peripheral surface of outer ring 2 corresponding positions, be extended with the symmetrical lip limit 81 of separating gradually the outer end to its inside on the inner peripheral surface of first double- lip sealing ring 8,82, pass through the interior concaved circular cambered surface transition on the seal ring inner peripheral surface between the inner, two lip limits, described bearing inner race 2 is provided with the lip limit of arc convex and described first double-lip sealing ring 8 and the concaved circular cambered surface between the lip limit and coincide and cooperate, the periphery of first double-lip sealing ring 8 convexes with axial limiting projection 83, convex with radially spacing hangnail 84 on the end face of one end of first double-lip sealing ring 8, described bearing outer ring 1 is provided with the groove that coincide and cooperate with described axial limiting projection 83 and radially spacing hangnail 84.This groove has the interior week that is opened in bearing outer ring 1 and the opening on the end face, enters from end face for the appropriate section of first double-lip sealing ring 8.
Second end face of bearing inner race 1 is heavy to be located at below bearing outer ring 2 second end faces, be equipped with second double-lip sealing ring 9 between near second end face of bearing outer ring 2 the inner peripheral surface and the outer circumferential face of bearing inner race 1 corresponding position, second double-lip sealing ring 9 is compared with first double-lip sealing ring 8, its lip limit, the axial limiting projection and the similar of spacing hangnail radially, but the lip limit is arranged on the seal ring outer circumferential face, and axial limiting projection and radially spacing hangnail are arranged on the inner peripheral surface of seal ring.Corresponding, the inner peripheral surface near its second end face of bearing outer ring 2 is provided with the arc convex corresponding with the lip limit of second double-lip sealing ring, and bearing inner race 1 second end face and contiguous outer circumferential face are provided with the groove that coincide and cooperate with axial limiting projection and radially spacing hangnail.

Claims (4)

1. wind-driven generator turntable bearing, comprise bearing inner race, bearing outer ring and be folded in steel ball between the relative side face of the inside and outside circle of bearing, it is characterized in that: first end face of bearing inner race is convexly set in more than bearing outer ring first end face, and second end face of bearing inner race is heavy to be located at below bearing outer ring second end face; Be equipped with first double-lip sealing ring between near first end face of bearing inner race outer circumferential face and the corresponding bearing outer ring inner peripheral surface, be extended with set identical cooperation of arc convex on the symmetrical lip limit of separating gradually the outer end and the described bearing inner race outer circumferential face to its inside on the inner peripheral surface of first double-lip sealing ring; Be equipped with second double-lip sealing ring between near second end face of bearing outer ring inner peripheral surface and the corresponding bearing inner race outer circumferential face, be extended with set identical cooperation of arc convex on the symmetrical lip limit of separating gradually the outer end and the described bearing inner race to its outside on the outer circumferential face of second double-lip sealing ring.
2. bearing according to claim 1, it is characterized in that: convex with the axial limiting projection on another side face of described first and second double-lip sealing ring with respect to place, lip limit side face, convex with radially spacing hangnail on the end face of the close axial limiting projection of first and second double-lip sealing ring, the corresponding side face of the inner ring of described bearing, outer ring is provided with the groove that coincide and cooperate with described axial limiting projection and radially spacing hangnail.
3. bearing according to claim 1 is characterized in that: between the inner, two lip limits of described first, second double-lip sealing ring all by the interior concaved circular cambered surface transition on the seal ring inner peripheral surface.
4. according to claim 1 or 2 or 3 described bearings, it is characterized in that: radially offer the dress ball hole that connects its inside and outside side face on the described bearing outer ring and be inserted with ball blocking block therein, be equipped with O-ring seals between ball blocking block and the dress ball hole, ball blocking block is a cylindricality, the inner is provided with the peach shape inner concave arc surface with the steel ball corresponding matching, also axially offers on the bearing outer ring to connect its two ends and the pin-and-hole that communicates with described dress ball hole and be inserted with the taper pin of wearing described ball blocking block therein.
CN2009203170808U 2009-12-10 2009-12-10 Turntable bearing for wind generator Expired - Fee Related CN201610894U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009203170808U CN201610894U (en) 2009-12-10 2009-12-10 Turntable bearing for wind generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009203170808U CN201610894U (en) 2009-12-10 2009-12-10 Turntable bearing for wind generator

Publications (1)

Publication Number Publication Date
CN201610894U true CN201610894U (en) 2010-10-20

Family

ID=42961527

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009203170808U Expired - Fee Related CN201610894U (en) 2009-12-10 2009-12-10 Turntable bearing for wind generator

Country Status (1)

Country Link
CN (1) CN201610894U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102097882A (en) * 2010-12-15 2011-06-15 新疆金风科技股份有限公司 Sealing element, sealing method and wind-driven generator
CN103742527A (en) * 2013-12-27 2014-04-23 瓦房店轴承集团有限责任公司 Design of internal guide manner of high-precision high-rotation-speed turntable bearing
CN107917137A (en) * 2017-12-12 2018-04-17 洛阳新能轴承制造有限公司 A kind of water proof type pitch variable bearings
CN109072884A (en) * 2016-02-25 2018-12-21 远景能源(江苏)有限公司 Wind turbine including torque bearing
CN114135585A (en) * 2021-12-09 2022-03-04 中国铁建重工集团股份有限公司 Main bearing and sealing structure of heading machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102097882A (en) * 2010-12-15 2011-06-15 新疆金风科技股份有限公司 Sealing element, sealing method and wind-driven generator
CN102097882B (en) * 2010-12-15 2013-07-31 新疆金风科技股份有限公司 Sealing element, sealing method and wind-driven generator
CN103742527A (en) * 2013-12-27 2014-04-23 瓦房店轴承集团有限责任公司 Design of internal guide manner of high-precision high-rotation-speed turntable bearing
CN109072884A (en) * 2016-02-25 2018-12-21 远景能源(江苏)有限公司 Wind turbine including torque bearing
CN107917137A (en) * 2017-12-12 2018-04-17 洛阳新能轴承制造有限公司 A kind of water proof type pitch variable bearings
CN114135585A (en) * 2021-12-09 2022-03-04 中国铁建重工集团股份有限公司 Main bearing and sealing structure of heading machine

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101020

Termination date: 20171210

CF01 Termination of patent right due to non-payment of annual fee