CN202412050U - Wind power pitch bearing diamond roller - Google Patents
Wind power pitch bearing diamond roller Download PDFInfo
- Publication number
- CN202412050U CN202412050U CN2011205047862U CN201120504786U CN202412050U CN 202412050 U CN202412050 U CN 202412050U CN 2011205047862 U CN2011205047862 U CN 2011205047862U CN 201120504786 U CN201120504786 U CN 201120504786U CN 202412050 U CN202412050 U CN 202412050U
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- roller
- pitch bearing
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- wind power
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Abstract
The utility model discloses a wind power pitch bearing diamond roller, which comprises a roller body and a fitting part. One end of the roller body is enabled to have an external conicity of 1:10 and the corresponding side of the fitting part is enabled to have an internal conicity of 1:10 by respectively machining the roller body and the fitting part, and then the roller body and the fitting part are combined through a screw to meet the requirements on precise center distance, uniform channel parallelism and contact angles. The wind power pitch bearing diamond roller is capable of simultaneously forming and trimming two abrasive wheels for one time, simultaneously grinding double channels of inner and outer rings of a pitch bearing, meeting the requirements on uniformity in center distance of the two channels of the pitch bearing, parallelism and contact angles of the two channels, and reducing surface roughness of the channels.
Description
Technical field
The utility model relates to a kind of bearing grinding diamond roller, relates in particular to the diamond roller of the two raceways of a kind of form grinding wind electricity pitch variable bearings.
Background technology
The used pitch variable bearings of wind power equipment is the critical component of wind-driven generator, and bearing requires to have high reliability and long life, keeps all even stable starting friction moment; Therefore the double four point touching ball slewing bearing of many employings; Double four-point contact ball formula turntable bearing long service life, bearing capacity is strong, and steering resistance is little; The permission wear extent is big, and is less demanding to mounting base.
Adopt the turntable bearing of double four-point contact ball structure; Need to guarantee balancedly bearing load of double channel, so the control apart from the two raceway groove depth of parallelisms, turntable bearing contact angle, raceway central diameter and the gap of uniformity and single lasso has high requirements to the inside and outside circle ditch heart of paired trap.The raceway of bearing processing at present changes grinding into from the finish turning of routine gradually.The raceway cross sectional shape is generally two circular arcs or elliptic arc, owing to adopt the cut-in type plunge grinding, so the correction of the flank shape profile of emery wheel has determined the raceway profile after the plunge grinding.Most of producers use the digital control vertical grinding machine to process; Utilize swing and the X of diamond pen, the interlock of moving these three kinds of motions of Z slide unit to realize the finishing of forming grinding wheel; If it is just influential to grinding wheel dressing that the diamond pen nib departs from its centre of gyration line, cause contour shape and dimension overproof.As on the high precision numerical control Vertical Mill; The emery wheel double channel internal, the outer ring of the two same diamond rollers shaping of process finishings is carried out grinding simultaneously; Just can guarantee the requirement that raceway groove centre-to-centre spacing is consistent, and the requirement of the two raceway groove depth of parallelisms, contact angle, the channel surface roughness is reduced.
The utility model content
The purpose of the utility model provides the two raceway diamond rollers of a kind of wind electricity pitch variable bearings; Its two emery wheels of finishing that can once just be shaped simultaneously; Double channel to the inside and outside circle of pitch variable bearings carries out grinding simultaneously; Can guarantee the requirement that pitch variable bearings two raceway groove centre-to-centre spacing are consistent, and the requirement of the two raceway groove depth of parallelisms, contact angle, the channel surface roughness is reduced.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is realized through following technical scheme:
The two raceway diamond rollers of a kind of wind electricity pitch variable bearings; Comprise roller wheel body and counterpart, through processing said roller wheel body and said counterpart respectively, an end that makes it said roller wheel body has the external taper of 1:10; The internal taper that has 1:10 in the respective side of said counterpart;, more said roller wheel body and said counterpart are lumped together through set screws, can obtain accurate centre-to-centre spacing size and the consistent raceway groove depth of parallelism, the requirement of contact angle.
Further, said centre-to-centre spacing size >=± 0.005mm.
The beneficial effect of the utility model is:
The utility model can once just be shaped simultaneously and repair two emery wheels; Double channel to the inside and outside circle of pitch variable bearings carries out grinding simultaneously; Can guarantee the requirement that pitch variable bearings two raceway groove centre-to-centre spacing are consistent, and the requirement of the two raceway groove depth of parallelisms, contact angle, the channel surface roughness is reduced.
Description of drawings
Accompanying drawing described herein is used to provide the further understanding to the utility model, constitutes the application's a part, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the wind electricity pitch variable bearings structural representation of being processed of the utility model;
Fig. 2 is the overall structure figure of the utility model;
Fig. 3 is the enlarged drawing of roller profile;
Fig. 4 is the mating part sketch map.
Label declaration among the figure: 1. roller wheel body, 2. counterpart, 3. screw.
The specific embodiment
Below with reference to accompanying drawing and combine embodiment, specify the utility model.
Referring to Fig. 1,2,3, shown in 4; The two raceway diamond rollers of a kind of wind electricity pitch variable bearings; Comprise a diamond roller body 1 and counterpart 2; Use and samely make the graphite matrix of said roller wheel body 1 and said counterpart 2 to molding cutter, guarantee that the graphite matrix of said roller wheel body 1 and said counterpart 2 has identical molding surface size; Press impregnation sintering method technology said roller wheel body 1 of sintering and said counterpart 2 respectively; Process the external taper of 1:10 during machined at an end of said roller wheel body 1; Process the internal taper of 1:10 in the respective side of said counterpart 2; It is combined together through screw 3; Through the end face that grinds body obtain accurate centre-to-centre spacing size (>=± 0.005mm), samely make the graphite matrix of roller wheel body and counterpart to molding cutter because use, therefore can obtain the raceway groove depth of parallelism of unanimity, the requirement of contact angle.
It is emphasized that; Though above-mentioned facility example is to the utility model detailed explanation of contrasting; But these explanations are just illustrative to the utility model; Rather than to the restriction of utility model, any innovation and creation that do not exceed in the utility model connotation all drop within the utility model rights protection scope.
Claims (2)
1. wind electricity pitch variable bearings diamond roller; It is characterized in that: comprise roller wheel body (1) and counterpart (2); Has the external taper of 1:10 through processing the end that said roller wheel body (1) and said counterpart (2) make it said roller wheel body (1) respectively; Respective side at said counterpart (2) has the internal taper of 1:10; Again said roller wheel body (1) and said counterpart (2) are combined through screw (3), can be obtained accurate centre-to-centre spacing size and the consistent raceway groove depth of parallelism, the requirement of contact angle.
2. wind electricity pitch variable bearings diamond roller according to claim 1 is characterized in that: said centre-to-centre spacing size >=± 0.005mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205047862U CN202412050U (en) | 2011-12-07 | 2011-12-07 | Wind power pitch bearing diamond roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205047862U CN202412050U (en) | 2011-12-07 | 2011-12-07 | Wind power pitch bearing diamond roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202412050U true CN202412050U (en) | 2012-09-05 |
Family
ID=46736843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205047862U Expired - Fee Related CN202412050U (en) | 2011-12-07 | 2011-12-07 | Wind power pitch bearing diamond roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202412050U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108857274A (en) * | 2018-06-14 | 2018-11-23 | 杭州力亿轴承有限公司 | Double channel emery wheel grinds processing method |
| CN109667733A (en) * | 2017-10-13 | 2019-04-23 | 通用电气公司 | Pitch variable bearings and pivoting support bearing for wind turbine |
-
2011
- 2011-12-07 CN CN2011205047862U patent/CN202412050U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667733A (en) * | 2017-10-13 | 2019-04-23 | 通用电气公司 | Pitch variable bearings and pivoting support bearing for wind turbine |
| CN108857274A (en) * | 2018-06-14 | 2018-11-23 | 杭州力亿轴承有限公司 | Double channel emery wheel grinds processing method |
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Legal Events
| 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: 20120905 Termination date: 20141207 |
|
| EXPY | Termination of patent right or utility model |