CN202273995U - Compact main bearing sealing device of wind turbine generator set - Google Patents

Compact main bearing sealing device of wind turbine generator set Download PDF

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Publication number
CN202273995U
CN202273995U CN2011203921927U CN201120392192U CN202273995U CN 202273995 U CN202273995 U CN 202273995U CN 2011203921927 U CN2011203921927 U CN 2011203921927U CN 201120392192 U CN201120392192 U CN 201120392192U CN 202273995 U CN202273995 U CN 202273995U
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CN
China
Prior art keywords
sealing
main bearing
end plate
inner ring
oil
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 - Lifetime
Application number
CN2011203921927U
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Chinese (zh)
Inventor
刘帅
侯银娟
苗向文
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.)
Sinovel Wind Group Co Ltd
Original Assignee
Sinovel Wind Group 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 Sinovel Wind Group Co Ltd filed Critical Sinovel Wind Group Co Ltd
Priority to CN2011203921927U priority Critical patent/CN202273995U/en
Application granted granted Critical
Publication of CN202273995U publication Critical patent/CN202273995U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Sealing Of Bearings (AREA)

Abstract

The utility model relates to a compact main bearing sealing device of a wind turbine generator set, which comprises a sealing large end plate, a sealing small end plate, an oil seal and a dustproof lip, wherein the sealing large end plate is fixed on an outer ring of a main bearing, and the oil seal is fixed on an inner ring of the main bearing. The oil seal is fixed in a cavity formed by the inner ring of the main bearing, the sealing large end plate and the sealing small end plate, one end face of the oil seal and the top of the oil seal butt against the sealing large end plate, and the other end face of the oil seal is clamped by a flange of the sealing small end plate. The sealing small end plate is fixed on the outer side of the sealing large end plate. A sealing edge is arranged at one end of the oil seal close to the main bearing, the sealing edge and the inner ring of the main bearing form an oil clearance, and a groove is arranged at one end of the sealing small end plate close to the inner ring of the main bearing. The dustproof lip is clamped in the groove, and a dustproof edge of the dustproof lip is attached to the outer side of the end face of the inner ring of the main bearing.

Description

The compact type main bearing seal arrangement of wind-powered electricity generation unit
Technical field
The utility model relates to wind power generating set, relates in particular to a kind of compact type main bearing seal arrangement of wind-powered electricity generation unit.
Background technique
Wind-power electricity generation is one of clean energy resource project of state key development as the reproducible resource of cleaning, and in the wind-powered electricity generation unit main bearing to be that vitals on the wind-driven generator plays a part extremely crucial, therefore the protection to main bearing just seems particularly important.Bearing seal is to guarantee one of parts that bearing runs well, and its effect had both prevented the leakage of bearing internal grease, prevents that again external dust and salt fog from getting into bearing.Design of Sealing Structure rationally be the important leverage that bearing can run well.
The compact type seal form of holding to wind power principal axis at present mainly contains two kinds: the oil sealing and the common oil sealing+V-type dust ring that have dust excluder lips.
The defective that has the oil sealing of dust excluder lips is that the general hardness of dust excluder lips is higher, lubricates because the position of dust excluder lips lacks, and dust excluder lips damages the bearing inner race shoulder easily.The groove after the dust excluder lips is piled up dust easily behind the long-play simultaneously, quickens bad seals and also the bearing inner race shoulder is caused damage.
The form that common oil sealing adds the V-type dust ring will be better than the oil sealing of band dust excluder lips on performance, but the shortcoming of himself is also arranged.Because the V-type dust ring normally is pressed against on the sealed cover, and the sealing of replacing for ease, logical the producing of sealed cover is divided into several, all can produce the slit between every pair of sealed cover.The V-type dust ring constantly rotates in the unit running process, and its wearing and tearing to the V-type dust ring can be aggravated in the slit between cover plate, significantly reduced the life-span of V-type dust ring, and this has also reduced the reliability of this scheme.
Therefore need provide a kind of scheme of novel safety and reliability to solve the problems referred to above.
Summary of the invention
The purpose of the utility model is to overcome the defective of existing technology, has both solved the narrow and small problem of seal space of installing, and satisfies the usage requirement of wind-powered electricity generation unit for the main bearing sealing simultaneously again.
For realizing above-mentioned purpose; The utility model proposes a kind of compact type main bearing seal arrangement of wind-powered electricity generation unit, and said seal arrangement comprises: seal big end plate, seal little end plate, oil sealing and dust excluder lips, the big end plate of sealing is fixed on the main bearing outer ring; This oil sealing is fixed on this main bearing inner ring; This oil sealing is fixed on by main bearing inner ring, the big end plate of sealing and seals in the cavity that little end plate is combined into, and an end face of this oil sealing is against with the top, top and seals on the big end plate, and the other end of this oil sealing is blocked by the flange of the little end plate of sealing; The little end plate of sealing is fixed on the outside of the big end plate of sealing; This oil sealing is provided with seal lip at the end near main bearing, and sealing lip and main bearing inner ring form oil clearance, and the little end plate of sealing is provided with groove near main bearing inner ring one end; This dust excluder lips is clamped in this groove, and it is outside that the dustproof lip of this dust excluder lips is attached to this main bearing inner ring end face.
During enforcement, the big end plate of sealing is through being bolted on the main bearing outer ring.
During enforcement, the little end plate of sealing is through being bolted on the big end plate of sealing.
During enforcement, the cross section of said dust excluder lips is a cross, and the dustproof lip of said dust excluder lips tilts to inner ring at a certain angle.
Compared with prior art, the beneficial effect of the utility model is, in this structure that the utility model adopted, dust excluder lips is fixed on the little end plate of sealing, and the oil sealing with respect to the band dust excluder lips has reduced the wearing and tearing to bearing, has prolonged the working life of oil sealing; Add the V-type dust ring with respect to common oil sealing, reduced the wearing and tearing of sealed cover splicing slit, back and high and low position problem, prolonged the working life of dust ring the V-type dust ring.
Description of drawings
Fig. 1 is the compact type main bearing schematic diagram of sealing device of the utility model wind-powered electricity generation unit.
Description of reference numerals: 1-seals big end plate; The 2-oil sealing; 21-seal lip; 3-seals little end plate; The 4-dust excluder lips; The 41-lip that prevents dust; 5-main bearing inner ring; 6-main bearing outer ring.
Embodiment
Can be understood better for the shape, structure and the characteristics that make the utility model, below will enumerate preferred embodiment and combine accompanying drawing to be elaborated.
Consulting shown in Figure 1 is a preferred embodiments of the compact type main bearing seal arrangement of the utility model wind-powered electricity generation unit; The sealing device comprises: seal big end plate 1, sealing small end plate 3, oil sealing 2 and dust excluder lips 4; The big end plate 1 of sealing is through being bolted on the main bearing outer ring 6, and this oil sealing 2 is fixed on this main bearing inner ring 5, and this oil sealing 2 is fixed in the cavity that is combined into by main bearing inner ring 5, the big end plate 1 of sealing and sealing small end plate 3; One end face of this oil sealing 2 and top, top are against on the big end plate 1 of sealing; The other end of this oil sealing 2 is blocked by the flange of sealing small end plate 3, and sealing small end plate 3 is through being bolted to the outside of the big end plate 1 of sealing, and this oil sealing 2 plays the effect of sealing lubricating oil; Said oil sealing 2 is provided with seal lip 21 at the end near main bearing; Sealing lip 21 forms oil clearance with main bearing inner ring 5, and sealing small end plate 3 is provided with groove near main bearing inner ring 5 one ends, and this dust excluder lips 4 is clamped in this groove; It is outside that the dustproof lip 41 of this dust excluder lips 4 is attached to main bearing inner ring 5 end faces, and dust excluder lips 4 can effectively stop the dust in the ambient air to get into main bearing.The cross section of said dust excluder lips 4 is a cross, and the dustproof lip 41 of said dust excluder lips 4 tilts to inner ring at a certain angle.
The oil sealing of the utility model is not limited to the oil sealing of this kind form; As long as can in the narrow space in the compact type main bearing seal arrangement of wind-powered electricity generation unit, play any type of oil sealing of effective sealing lubricant oil effect, all drop in the protection domain of the utility model.
More than be illustrative to the description of the utility model; And it is nonrestrictive; Those skilled in the art is understood, and within spirit that claim limits and scope, can carry out many modifications, variation or equivalence to it, but they will fall in the protection domain of the utility model all.

Claims (4)

1. the compact type main bearing seal arrangement of a wind-powered electricity generation unit; It is characterized in that: said seal arrangement comprises: seal big end plate, seal little end plate, oil sealing and dust excluder lips; The big end plate of sealing is fixed on the main bearing outer ring, and this oil sealing is fixed on this main bearing inner ring, and this oil sealing is fixed on by main bearing inner ring, the big end plate of sealing and seals in the cavity that little end plate is combined into; One end face of this oil sealing and top, top are against on the big end plate of sealing; The other end of this oil sealing is blocked by the flange of the little end plate of sealing, and the little end plate of sealing is fixed on the outside of the big end plate of sealing, and this oil sealing is provided with seal lip at the end near main bearing; Sealing lip and main bearing inner ring form oil clearance; The little end plate of sealing is provided with groove near main bearing inner ring one end, and this dust excluder lips is clamped in this groove, and it is outside that the dustproof lip of this dust excluder lips is attached to this main bearing inner ring end face.
2. the compact type main bearing seal arrangement of wind-powered electricity generation unit as claimed in claim 1 is characterized in that the big end plate of said sealing is through being bolted on the main bearing outer ring.
3. the compact type main bearing seal arrangement of wind-powered electricity generation unit as claimed in claim 1 is characterized in that, the little end plate of said sealing is through being bolted on the big end plate of sealing.
4. the compact type main bearing seal arrangement of wind-powered electricity generation unit as claimed in claim 1 is characterized in that the cross section of said dust excluder lips is a cross, and the dustproof lip of said dust excluder lips tilts to inner ring at a certain angle.
CN2011203921927U 2011-10-14 2011-10-14 Compact main bearing sealing device of wind turbine generator set Expired - Lifetime CN202273995U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203921927U CN202273995U (en) 2011-10-14 2011-10-14 Compact main bearing sealing device of wind turbine generator set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203921927U CN202273995U (en) 2011-10-14 2011-10-14 Compact main bearing sealing device of wind turbine generator set

Publications (1)

Publication Number Publication Date
CN202273995U true CN202273995U (en) 2012-06-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203921927U Expired - Lifetime CN202273995U (en) 2011-10-14 2011-10-14 Compact main bearing sealing device of wind turbine generator set

Country Status (1)

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CN (1) CN202273995U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103062226A (en) * 2012-12-28 2013-04-24 上海联合滚动轴承有限公司 Seal structure for wind power bearing manufacture
CN103104617A (en) * 2013-03-04 2013-05-15 苏州航天特谱风能技术有限公司 Main bearing sealing system for wind generating set
CN105387068A (en) * 2014-08-25 2016-03-09 斯凯孚公司 Slewing bearing for a vehicle
CN109072884A (en) * 2016-02-25 2018-12-21 远景能源(江苏)有限公司 Wind turbine including torque bearing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103062226A (en) * 2012-12-28 2013-04-24 上海联合滚动轴承有限公司 Seal structure for wind power bearing manufacture
CN103104617A (en) * 2013-03-04 2013-05-15 苏州航天特谱风能技术有限公司 Main bearing sealing system for wind generating set
CN105387068A (en) * 2014-08-25 2016-03-09 斯凯孚公司 Slewing bearing for a vehicle
CN105387068B (en) * 2014-08-25 2019-06-25 斯凯孚公司 Slewing bearing for delivery vehicle
CN109072884A (en) * 2016-02-25 2018-12-21 远景能源(江苏)有限公司 Wind turbine including torque bearing

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CX01 Expiry of patent term

Granted publication date: 20120613