CN102562812A - Retainer on large wind-power double-row tapered roller bearing - Google Patents
Retainer on large wind-power double-row tapered roller bearing Download PDFInfo
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- CN102562812A CN102562812A CN201010611407XA CN201010611407A CN102562812A CN 102562812 A CN102562812 A CN 102562812A CN 201010611407X A CN201010611407X A CN 201010611407XA CN 201010611407 A CN201010611407 A CN 201010611407A CN 102562812 A CN102562812 A CN 102562812A
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- retainer
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- rib
- curb girder
- lintels
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Abstract
The invention discloses a retainer on a large wind-power double-row tapered roller bearing, which is formed by enclosing multiple sections of unit retainers without using any connecting mechanism. Each unit retainer comprises a small end rib, a large end rib, a pair of side beams and a plurality of through beams. The inner end face of the large end rib and the outer end face of the large end rib are coaxial circular arc faces. The small end rib, the large end rib and the pair of side beams form a isosceles trapezoid frame, and a cavity of the isosceles trapezoid frame is basically annular. The plurality of through beams are evenly distributed and in bridge joint between the small end rib and the large end rib in a fan-shaped distribution mode so as to form a plurality of basically-trapezoidal pockets between the pair of side beams and adjacent through beams and between the adjacent through beams. The distance between the boundary of the upper portion vertical faces and the lower portion cambered faces of two side faces of each through beam and the boundary of the upper portion vertical faces and the lower portion cambered faces of one side faces of the adjacent and opposite through beams or the inner side faces of the side beams is smaller than diameter of a tapered roller, and the difference between the distance and the diameter is the shrink volume delta.
Description
Technical field
The present invention relates to the retainer on a kind of large-scale wind electricity double-row conical bearing.
Background technique
China is marching this piece of wind-power electricity generation brand-new " pollution-free industry "; Render a service in order to make wind-driven generator promote generating; Increase generated output, the size at positions such as the length of blade, main shaft, speed increaser, generator is also in continuous expansion, and the external diameter that makes bearing is about 1.7m; The loading that the while bearing is born also increases gradually, and this technical requirements to wind power bearing is very high.The large-scale wind electricity double-row conical bearing can bear big radial load and thrust load; Inner member for bearing; Rolling element is important load-bearing component; And retainer is except that the running state that keeps rolling element, also has rolling element is equally spaced, is distributed on the circumference of raceway the function that runs foul of each other and rub between rolling element when preventing work.Traditional retainer generally has integral types such as the retainer, pin formula retainer, forming synthetic resin retainer of drawn-steel retainer (Z-shaped), Cuprum alloy cutting.If use traditional integral type retainer at large-scale double-row conical bearing, because oversize, the weight of retainer itself will make it deform.In the bearing running, this distortion can cause rolling element to contact with the extra of retainer, and therefore produces extra friction.This not only can increase the running temperature of bearing, and friction also can cause the distortion of retainer even rolling element to the wearing and tearing of the material of retainer and rolling element, finally influences the bearing capacity and the working life of bearing.Therefore this problem needs to be resolved hurrily.
Summary of the invention
The objective of the invention is provides the retainer on a kind of large-scale wind electricity double-row conical bearing in order to overcome the deficiency of existing technology, and it can eliminate the distortion of retainer, thereby improves the bearing capacity and the working life of bearing.
A kind of technological scheme that realizes above-mentioned purpose is: the retainer on a kind of large-scale wind electricity double-row conical bearing; Said double-row conical bearing comprises inner ring, outer ring, has retainer and a plurality of tapered roller in a plurality of pockets hole; Said retainer is located between inner ring and the outer ring, and a plurality of tapered rollers are assembled in the whole raceway that constitutes after the circular arc raceway groove combination by the circular arc raceway groove of inner ring outer surface and inner surface and are arranged in the pocket hole of said retainer.Said retainer is not surrounded through any bindiny mechanism by multistage unit retainer and forms, and each unit retainer comprises microcephaly's rib, major part rib, a pair of curb girder and some lintels, wherein:
The length of said microcephaly's rib is less than the length of said major part rib, and the interior edge face of the exterior edge face of said major part rib and said microcephaly's rib is to be faced directly, and the exterior edge face of the interior edge face of said major part rib and said microcephaly's rib is coaxial arc surface;
The outer side surface of said a pair of curb girder is to be faced directly, and the inner side surface of said a pair of curb girder is faced directly with the bottom cambered surface by top and constituted;
Said microcephaly's rib, major part rib and a pair of curb girder constitute the trapezoidal frame of isosceles, and the cavity of this trapezoidal frame is arc ring shape basically;
The bi-side of said some lintels are faced directly with the bottom cambered surface by top respectively and are constituted; Said some lintels are connected across between said microcephaly's rib and the major part rib with the mode of fan-shaped distribution in uniform way, make between said a pair of curb girder and the adjacent lintel and two adjacent lintels between constitute several and be trapezoidal pocket hole basically;
The top of the inner side surface of said a pair of curb girder is faced the boundary line of facing directly with the bottom cambered surface with the top of the bi-side of the boundary line of bottom cambered surface and each lintel directly and is positioned on the same cambered surface;
The top of the bi-side of each said lintel is faced directly and the top of the inner side surface of side of the boundary line of bottom cambered surface and adjacent and relative said lintel or said curb girder is faced directly and the boundary line of bottom cambered surface between distance less than the diameter of said tapered roller, and both differences are a hold depth δ.
Retainer on the above-mentioned large-scale wind electricity double-row conical bearing wherein, is respectively equipped with two convexities on the upper and lower end face of said a pair of curb girder and some lintels, the bi-side that are positioned at the convexity on the upper-end surface of said a pair of curb girder and some lintels are to be faced directly; The bi-side that are positioned at the convexity on the lower end surface of said some lintels are the extension of bottom cambered surface of the bi-side of said lintel; The outer side surface that is positioned at two convexities on the said a pair of curb girder lower end surface is for facing directly, and the inner side surface of these two convexities is the extension of bottom cambered surface of the inner side surface of said a pair of curb girder.
Retainer on the above-mentioned large-scale wind electricity double-row conical bearing, wherein, the thickness of said lintel is greater than the thickness of said curb girder.
Retainer on the above-mentioned large-scale wind electricity double-row conical bearing, wherein, the pocket hole number on the said unit retainer assembly is 4～8.
Retainer on the above-mentioned large-scale wind electricity double-row conical bearing, wherein, said unit retainer adopts polyethers ether carbon/carbon-copper composite material to process.
The technological scheme of the retainer on the large-scale wind electricity double-row conical bearing of the present invention; Adopting multistage unit retainer to surround forms; And adopt 4～8 shared unit retainers of rolling element; The individuality of each unit retainer is all very little, and does not adopt any bindiny mechanism to connect between each unit retainer, thereby the integral type retainer of having eliminated available technology adopting can make distortion that the weight of itself produces and that bring and extra friction rolling element.That retainer on the large-scale wind electricity double-row conical bearing of the present invention has is in light weight, noise is low, and can highly at a high speed carry, use in the rugged environment such as dust pollution, thereby guarantee the bearing capacity of bearing, and the working life of having improved retainer.
Description of drawings
Fig. 1 is the structural representation of the double-row conical bearing of routine;
Fig. 2 is the side view of the retainer on the large-scale wind electricity double-row conical bearing of the present invention;
Fig. 3 is that the A of Fig. 2 is to view;
Fig. 4 is that the B of Fig. 2 is to view;
Fig. 5 is that the C-C of Fig. 2 is to view;
Fig. 6 is that the D-D of Fig. 2 is to view.
Embodiment
In order to understand technological scheme of the present invention better, below through concrete embodiment and combine accompanying drawing at length to explain:
See also Fig. 1; Double-row conical bearing comprises outer ring 10, inner ring 20, has retainer 40 and a plurality of tapered roller 30 in a plurality of pockets hole; Retainer 40 is located between inner ring 20 and the outer ring 10, and tapered roller 30 is assembled in the whole raceway that constitutes after the circular arc raceway groove combination by the circular arc raceway groove of inner ring 20 outer surfaces and outer ring 10 internal surfaces and is arranged in the pocket hole of retainer 40.
See also Fig. 2 to Fig. 6 again; Retainer 40 on the large-scale wind electricity double-row conical bearing of the present invention is not surrounded through any bindiny mechanism by multistage unit retainer 50 and forms; Each unit retainer 50 adopts polyethers ether carbon/carbon-copper composite material to process; This material has outstanding intensity and toughness, broad operating temperature range, high-strength chemical resistance and wearability, have in light weight, noise is low, can highly at a high speed carry, use in the rugged environment such as dust pollution.
Each unit retainer 50 comprises microcephaly's rib 1, a major part rib 12, a pair of curb girder 3 and some lintels 4, wherein:
The length of microcephaly's rib 1 is less than the length of major part rib 2, and the interior edge face 11 of microcephaly's rib 1 and the exterior edge face 22 of major part rib 2 are to be faced directly, and the exterior edge face 12 of microcephaly's rib 1 and the interior edge face 21 of major part rib 2 are coaxial arc surface;
The outer side surface of a pair of curb girder 3 is to be faced directly, and the inner side surface of a pair of curb girder 3 is faced 31 directly by top and constituted with bottom cambered surface 32;
Microcephaly's rib 1, major part rib 2 and a pair of curb girder 3 constitute the trapezoidal frame of isosceles, and the cavity of this trapezoidal frame is an arc ring shape basically;
The thickness of some lintels 4 is greater than the thickness of a pair of curb girder 3; The bi-side of each lintel 4 are faced 41 directly by top respectively and are constituted with bottom cambered surface 42; Some lintels 4 are connected across between microcephaly's rib 1 and the major part rib 2 with the mode of fan-shaped distribution in uniform way, make between a pair of curb girder 3 and the adjacent lintel 4 and two adjacent lintels 4 between constitute several and be trapezoidal pocket hole 5 basically;
The top of the inner side surface of a pair of curb girder 3 is faced 31 directly and is faced 41 directly with the top of the bi-side of the boundary line of bottom cambered surface 32 and each lintel 4 and be positioned on the same cambered surface 60 with the boundary line of bottom cambered surface 42; After making tapered roller put into pocket hole 5, the line in the center of circle of each tapered roller is positioned on this cambered surface 60;
The top of the bi-side of each lintel 4 face directly 41 and the top of the side of the boundary line of bottom cambered surface 42 and adjacent and relative lintel 4 face directly 41 and the top of the inner side surface of the boundary line of bottom cambered surface 42 or curb girder 3 face directly 31 and the boundary line of bottom cambered surface 32 between distance L less than the diameter of tapered roller; And both differences are a hold depth δ; This hold depth is the amount of elasticity of polyethers ether carbon/carbon-copper composite material, tapered roller 30 is packed into can not come off in the pocket hole 5;
Pocket hole 5 quantity on the unit retainer 50 are preferably 4～8.
If the quantity of tapered roller is 48 on the bearing; Whole retainer can surround with 12 and unit retainer 50 with 4 pocket holes 5 and form; The angle that is a pair of curb girder 3 of each unit retainer 50 is 30 °; Can suitably reduce the angle of a pair of curb girder 3 during actual fabrication, to guarantee to surround each unit retainer 50 mutual noninterference of back.
On a pair of curb girder 3 on the unit retainer 50 and the upper and lower end face of some lintels 4 respectively the compartment of terrain be provided with two convexities 33,34,43,44, be supported on as unit retainer 50 strong points on the internal surface of outer surface and outer ring 10 of inner ring 20; Wherein, the bi-side that are positioned at the convexity 33,43 on the upper-end surface of a pair of curb girder 3 and some lintels 4 are to be faced directly, and the bi-side that are positioned at the convexity 44 on the lower end surface of some lintels 4 are the extension of bottom cambered surface 42 of the bi-side of lintel 4; The outer side surface that is positioned at two convexities 34 on a pair of curb girder 3 lower end surfaces is for facing directly; And the inner side surface of these two convexities 34 is the extension of bottom cambered surface 32 of the inner side surface of a pair of curb girder 3; Make unit retainer 50 not only have tapered roller 30 guiding to also have the raceway guiding, and make each unit retainer 50 not produce crooked at movement process.
Technological scheme of the present invention utilizes large diameter arc ring to be similar to the principle of isosceles trapezoid; It is trapezoidal that the profile of each unit retainer is designed to isosceles; Approach the full circle ring after surrounding through a plurality of unit retainer, not only made things convenient for processing, and surround each unit retainer mutual noninterference of back; And the weight of unit retainer itself can not produce distortion yet, and can be dropped to minimum with friction that rolling element produces yet.
Those of ordinary skill in the art will be appreciated that; Above embodiment is used for explaining the present invention; And be not to be used as qualification of the present invention; As long as in connotation scope of the present invention, all will drop in claims scope of the present invention the above embodiment's variation, modification.
Claims (5)
1. the retainer on the large-scale wind electricity double-row conical bearing; Said double-row conical bearing comprises inner ring, outer ring, has retainer and a plurality of tapered roller in a plurality of pockets hole; Said retainer is located between inner ring and the outer ring; A plurality of tapered rollers are assembled in the whole raceway that constitutes after the circular arc raceway groove combination by the circular arc raceway groove of inner ring outer surface and inner surface and are arranged in the pocket hole of said retainer, it is characterized in that
Said retainer is not surrounded through any bindiny mechanism by multistage unit retainer and forms, and each unit retainer comprises microcephaly's rib, major part rib, a pair of curb girder and some lintels,
The length of said microcephaly's rib is less than the length of said major part rib, and the interior edge face of the exterior edge face of said major part rib and said microcephaly's rib is to be faced directly, and the exterior edge face of the interior edge face of said major part rib and said microcephaly's rib is coaxial arc surface;
The outer side surface of said a pair of curb girder is to be faced directly, and the inner side surface of said a pair of curb girder is faced directly with the bottom cambered surface by top and constituted;
Said microcephaly's rib, major part rib and a pair of curb girder constitute the trapezoidal frame of isosceles, and the cavity of this trapezoidal frame is arc ring shape basically;
The bi-side of said some lintels are faced directly with the bottom cambered surface by top respectively and are constituted; Said some lintels are connected across between said microcephaly's rib and the major part rib with the mode of fan-shaped distribution in uniform way, make between said a pair of curb girder and the adjacent lintel and two adjacent lintels between constitute several and be trapezoidal pocket hole basically;
The top of the inner side surface of said a pair of curb girder is faced the boundary line of facing directly with the bottom cambered surface with the top of the bi-side of the boundary line of bottom cambered surface and each lintel directly and is positioned on the same cambered surface;
The top of the bi-side of each said lintel is faced directly and the top of the inner side surface of side of the boundary line of bottom cambered surface and adjacent and relative said lintel or said curb girder is faced directly and the boundary line of bottom cambered surface between distance less than the diameter of said tapered roller, and both differences are a hold depth δ.
2. the retainer on the large-scale wind electricity double-row conical bearing according to claim 1; It is characterized in that; Be respectively equipped with two convexities on the upper and lower end face of said a pair of curb girder and some lintels, the bi-side that are positioned at the convexity on the upper-end surface of said a pair of curb girder and some lintels are to be faced directly; The bi-side that are positioned at the convexity on the lower end surface of said some lintels are the extension of bottom cambered surface of the bi-side of said lintel; The outer side surface that is positioned at two convexities on the said a pair of curb girder lower end surface is for facing directly, and the inner side surface of these two convexities is the extension of bottom cambered surface of the inner side surface of said a pair of curb girder.
3. the retainer on the large-scale wind electricity double-row conical bearing according to claim 1 and 2 is characterized in that the thickness of said lintel is greater than the thickness of said curb girder.
4. the retainer on the large-scale wind electricity double-row conical bearing according to claim 1 is characterized in that, the pocket hole number on the said unit retainer assembly is 4～8.
5. the retainer on the large-scale wind electricity double-row conical bearing according to claim 1 is characterized in that, said unit retainer adopts polyethers ether carbon/carbon-copper composite material to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010611407.XA CN102562812B (en) | 2010-12-29 | 2010-12-29 | Retainer on large wind-power double-row tapered roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010611407.XA CN102562812B (en) | 2010-12-29 | 2010-12-29 | Retainer on large wind-power double-row tapered roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102562812A true CN102562812A (en) | 2012-07-11 |
| CN102562812B CN102562812B (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010611407.XA Expired - Fee Related CN102562812B (en) | 2010-12-29 | 2010-12-29 | Retainer on large wind-power double-row tapered roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102562812B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542001A (en) * | 2012-07-12 | 2014-01-29 | 株式会社捷太格特 | Jig for split cage and method of assembling rolling bearing |
| CN104105893A (en) * | 2012-12-21 | 2014-10-15 | 日本精工株式会社 | Rolling bearing |
| CN109812502A (en) * | 2019-03-26 | 2019-05-28 | 洛阳新强联回转支承股份有限公司 | A kind of three-row cylinder roller cutter head of shield machine bearing of bimetallic retainer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1408248A2 (en) * | 2002-10-08 | 2004-04-14 | Ab Skf | Roller bearing cage |
| DE102005009980B3 (en) * | 2005-03-04 | 2006-06-14 | Aktiebolaget Skf | Antifriction bearing has inner ring along with truncated cone like inner surface, which is limited laterally by first board, second board, and outer ring with retaining segments which stand in interference with inner ring |
| JP2007255535A (en) * | 2006-03-22 | 2007-10-04 | Ntn Corp | Roller bearing, retainer segment, and spindle supporting structure of wind power generator |
| CN101672329A (en) * | 2009-07-22 | 2010-03-17 | 宁波达克轴承有限公司 | Bearing retainer and machining technique thereof |
| CN201963737U (en) * | 2010-12-29 | 2011-09-07 | 上海联合滚动轴承有限公司 | Retaining frame on large-sized wind power double-line tapered roller bearing |
-
2010
- 2010-12-29 CN CN201010611407.XA patent/CN102562812B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1408248A2 (en) * | 2002-10-08 | 2004-04-14 | Ab Skf | Roller bearing cage |
| DE102005009980B3 (en) * | 2005-03-04 | 2006-06-14 | Aktiebolaget Skf | Antifriction bearing has inner ring along with truncated cone like inner surface, which is limited laterally by first board, second board, and outer ring with retaining segments which stand in interference with inner ring |
| JP2007255535A (en) * | 2006-03-22 | 2007-10-04 | Ntn Corp | Roller bearing, retainer segment, and spindle supporting structure of wind power generator |
| CN101672329A (en) * | 2009-07-22 | 2010-03-17 | 宁波达克轴承有限公司 | Bearing retainer and machining technique thereof |
| CN201963737U (en) * | 2010-12-29 | 2011-09-07 | 上海联合滚动轴承有限公司 | Retaining frame on large-sized wind power double-line tapered roller bearing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542001A (en) * | 2012-07-12 | 2014-01-29 | 株式会社捷太格特 | Jig for split cage and method of assembling rolling bearing |
| CN104105893A (en) * | 2012-12-21 | 2014-10-15 | 日本精工株式会社 | Rolling bearing |
| CN109812502A (en) * | 2019-03-26 | 2019-05-28 | 洛阳新强联回转支承股份有限公司 | A kind of three-row cylinder roller cutter head of shield machine bearing of bimetallic retainer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102562812B (en) | 2014-07-30 |
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Granted publication date: 20140730 Termination date: 20211229 |