CN212407339U - Self-lubricating snap close type isolating ring for three-row cylindrical bearing - Google Patents
Self-lubricating snap close type isolating ring for three-row cylindrical bearing Download PDFInfo
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- CN212407339U CN212407339U CN202021214226.9U CN202021214226U CN212407339U CN 212407339 U CN212407339 U CN 212407339U CN 202021214226 U CN202021214226 U CN 202021214226U CN 212407339 U CN212407339 U CN 212407339U
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model relates to a three rows of cylindrical bearing technical field of super large megawatt land, coastal, floating formula and offshore wind generating set independent oar system that becomes specifically are a self-lubricating snap close formula spacer ring for three rows of cylindrical bearing, including the hole roof beam of upper portion ring beam, lower part ring beam and a plurality of connection upper portion ring beam, lower part ring beam, adjacent hole roof beam and upper portion ring beam, lower part ring beam enclose into pocket hole, its characterized in that: two side walls on one side of the outer ring of the hole beam are planes, and two side walls on one side of the inner ring of the hole beam are cambered surfaces. The utility model discloses reduce the friction between roller and the cage, between roller and the raceway. The failure modes of the bearing are reduced, and the service life of the bearing is prolonged.
Description
Technical Field
The utility model relates to a three rows of cylindrical bearing technical field of super large megawatt land, coastal, floating formula and offshore wind generating set independent oar system of becoming specifically are a self-lubricating hasp formula spacer ring for three rows of cylindrical bearing, and it is a spacer ring that is applied to the independent oar system of changing of super large megawatt far sea deep sea compliance formula platform wind generating set on high bearing light dead weight light wearing and tearing self-lubricating area hasp formula three rows of cylindrical bearing of heavy self-lubricating.
Background
At present, most units put into operation on site in China all use a unified pitch control method, and the method has the advantages that stable power output of the units above rated wind speed can be realized, but the control capability on load is poor.
As the working environment of the fan is continuously severe, megawatts is continuously increased, the length of the blade is continuously increased, and the requirement on the load control capacity is continuously improved, the independent variable pitch system is generated.
The independent variable pitch control technology is different from a traditional unified variable pitch control means, and a control system can give relatively independent variable pitch control signals for each blade, so that the three blades have relatively independent characteristics according to different positions in the rotation process, and the extra fatigue load borne by each blade in the rotation process is greatly reduced. Independent pitch control systems in wind generating sets have become an industry trend.
The three rows of cylindrical bearings are used as the most important special bearings in the independent variable pitch system of the ultra-large megawatt far-sea deep-sea compliant platform wind generating set, and the excellent use and running performance, the bearing capacity and the service life are related to the normal operation, the generating efficiency and the like of the wind driven generator. As the matched bearing has larger size, complex structure and stress and larger difficulty for design and production, the three-row cylindrical bearing produced in China generally has the performance and the service life which are difficult to be matched in the engine room of the ultra-large megawatt far-sea deep-sea compliant platform wind generating set. Therefore, it is urgent to improve the internal structure optimization design of the three-row cylindrical bearing.
The design of the isolating ring structure of the three-row cylindrical bearing with high bearing capacity, super-precision end, light self weight, light abrasion, self lubrication and locking is a key problem in the future development trend.
SUMMERY OF THE UTILITY MODEL
In view of prior art's defect, the utility model provides a self-lubricating hasp formula is isolating ring for three rows of cylindrical bearing, it overcome with super large megawatt open sea deep sea compliance formula platform wind generating set use operating mode complicated, the size is big, the bad subalternation problem of actual environment.
In order to achieve the purpose, the utility model discloses a technical scheme that adopts is a self-lubricating snap close formula spacer ring for three-row cylindrical bearing, including the hole roof beam of upper portion ring beam, lower part ring beam and a plurality of connection upper portion ring beam, lower part ring beam, adjacent hole roof beam encloses into the pocket hole with upper portion ring beam, lower part ring beam, two lateral walls of hole roof beam outer lane one side are the plane, and two lateral walls of hole roof beam inner circle one side are the cambered surface.
Furthermore, two sides of the pocket from outside to inside 1/3 are planes, and two sides of the pocket from inside to outside 2/3 are cambered surfaces.
Further, the arc surface is not in complete contact with the cylindrical roller.
Based on the technical scheme, the inner part of the isolation ring is designed into an 1/3 straight line and 2/3 arc-shaped structure, and a locking device is formed at the contact position of the straight line and the arc-shaped structure; the arc-shaped position is not in complete contact with the cylindrical roller, so that a small space is formed, and certain grease can be stored in the space. When the bearing operates, due to the existence of the locking device, the roller can not fall off under the condition that the isolating ring is not broken, and each roller space can store certain grease, so that the friction between the rollers and the isolating ring and between the rollers and the roller paths is reduced excellently. The failure modes of the bearing are reduced, and the service life of the bearing is prolonged.
Furthermore, one side of the inner ring of the hole beam is longitudinally provided with a V-shaped groove.
Further, the V-shaped groove stores lubricating grease therein.
Based on above-mentioned technical scheme, the low one side of spacer ring atress adopts fluted body structural design, has cancelled traditional solid surface design, and at the bearing operation in-process, the groove can save partly grease, makes each spacer ring form one by one from the lubricating system, fabulous reduction the friction between spacer ring and the spacer ring, between spacer ring and the raceway, between spacer ring and the lasso, very big reinforcing bearing running conditions. And the blades of the fan can be more smoothly changed in a severe environment, and the power generation efficiency of the fan is improved.
Furthermore, an upper ring beam large chamfer is arranged on one side of the inner ring and one side of the outer ring of the upper ring beam.
Preferably, the angle of the large chamfer of the upper ring beam is 62-64 degrees.
Furthermore, a lower ring beam large chamfer is arranged on one side of the inner ring and one side of the outer ring of the lower ring beam.
Preferably, the angle of the large chamfer of the lower ring beam is between 64 and 66 degrees.
Based on above-mentioned technical scheme, isolating ring super large chamfer structural design has not only reduced the dead weight of its structure, under the circumstances of actual loading, makes the isolating ring reduce with the axial area of contact of lasso moreover, very big reduction the wearing and tearing condition of isolating ring, improve the life of isolating ring to improve the life of bearing under extreme operating mode.
Furthermore, the width of one side of the outer ring of the hole beam is smaller than that of one side of the inner ring of the hole beam.
To the utility model discloses a further explanation, three rows of cylindrical bearings that this isolating ring design used are suitable for 2MW to 10MW land low wind speed and large-scale offshore wind turbine and float the independent oar system of becoming of formula fan, also can ensure even running under the emergence fan wake effect, the structure fluid-solid coupling power condition. The isolating ring is made of ultra-light high-bearing plastic materials, so that the self weight of the bearing can be greatly reduced, and the extra fatigue load borne by the whole fan system is greatly reduced; the service life of the whole fan system is prolonged; thereby greatly reducing the cost of installation and later operation and maintenance of the offshore wind turbine.
The utility model has the advantages that: and the friction between the roller and the isolating ring and between the roller and the raceway is reduced. The failure modes of the bearing are reduced, and the service life of the bearing is prolonged.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a rear view of the structure of the present invention;
FIG. 3 is a rotated cross-sectional view A-A of FIG. 1;
FIG. 4 is a rotated cross-sectional view of B-B of FIG. 1;
in the figure: 1. an upper ring beam; 2. a lower ring beam; 3. a hole beam; 4. a pocket hole; 5. a cambered surface; 6. a plane; 7. a cylindrical roller; 8. v-shaped grooves 9, hole beam inner rings 10 and hole beam outer rings.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model provides a self-lubricating hasp formula spacer ring for three-row cylindrical bearing, includes that upper portion ring beam 1, lower part ring beam 2 and a plurality of connect the hole roof beam 3 of upper portion ring beam 1, lower part ring beam 2, and adjacent hole roof beam 3 encloses into pocket 4 with upper portion ring beam 1, lower part ring beam 2, two lateral walls of 3 outer lane one sides of hole roof beam are plane 6, and two lateral walls of hole roof beam inner circle one side are cambered surface 6.
Furthermore, two sides of the pocket 4 from outside to inside 1/3 are planes, and two sides of the pocket 4 from inside to outside 2/3 are arc surfaces 5.
Further, the arc surface 5 is not in full contact with the cylindrical roller 7.
Furthermore, one side of the inner ring of the hole beam 3 is longitudinally provided with a V-shaped groove 8. The depth of the V-shaped groove 8 is 4 mm.
Further, the V-groove 8 stores lubricating grease therein.
Further, an upper ring beam large chamfer is arranged on one side of the inner ring and one side of the outer ring of the upper ring beam 1, and the upper ring beam large chamfer is 63 degrees, 26' 6 ".
Furthermore, a large chamfer angle of the lower ring beam is arranged on one side of the inner ring and one side of the outer ring of the lower ring beam 2, and the large chamfer angle of the lower ring beam is 65 degrees, 46' 20 ".
Further, the width of one side of the outer ring of the hole beam 3 is smaller than that of one side of the inner ring.
The three rows of cylindrical bearings used by the design of the isolating ring are suitable for 2MW to 10MW land low-wind-speed and large-scale offshore wind turbines and floating type independent variable pitch systems of the wind turbines, and can also ensure stable operation under the conditions of wind turbine wake effect and structural fluid-solid coupling power.
The isolating ring is made of ultra-light high-bearing plastic materials, so that the self weight of the bearing can be greatly reduced, and the extra fatigue load borne by the whole fan system is greatly reduced; the service life of the whole fan system is prolonged; thereby greatly reducing the cost of installation and later operation and maintenance of the offshore wind turbine.
The technical scheme is as follows: according to specific numerical values of radial load, axial load and overturning moment borne by the bearing, an optimal technical scheme is selected through calculation and finite element analysis, and the most appropriate main parameters including isolation ring materials, the size and the angle of an isolation ring chamfer, the depth and the distribution condition of an isolation ring groove and arc chord length and the angle in the isolation ring locking device are selected.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. The utility model provides a self-lubricating snap close formula is isolating ring for three-row cylindrical bearing, includes the hole roof beam of upper portion ring beam, lower part ring beam and a plurality of connection upper portion ring beam, lower part ring beam, and adjacent hole roof beam encloses into pocket hole, its characterized in that with upper portion ring beam, lower part ring beam: two side walls on one side of the outer ring of the hole beam are planes, and two side walls on one side of the inner ring of the hole beam are cambered surfaces.
2. The self-lubricating snap-lock type spacer ring for three-row cylindrical bearings according to claim 1, wherein: the two sides of the pocket from outside to inside 1/3 are planes, and the two sides of the pocket from inside to outside 2/3 are cambered surfaces.
3. The self-lubricating snap-lock type spacer ring for three-row cylindrical bearings according to claim 1, wherein: one side of the inner ring of the hole beam is longitudinally provided with a V-shaped groove.
4. The self-lubricating snap-lock type spacer ring for three-row cylindrical bearings according to claim 3, wherein: lubricating grease is stored in the V-shaped groove.
5. The self-lubricating snap-lock type spacer ring for three-row cylindrical bearings according to claim 1, wherein: and one side of the inner ring and one side of the outer ring of the upper ring beam are both provided with a large chamfer of the upper ring beam.
6. The self-lubricating snap-lock type spacer ring for three-row cylindrical bearings according to claim 5, wherein: the angle of the large chamfer angle of the upper ring beam is 62-64 degrees.
7. The self-lubricating snap-lock type spacer ring for three-row cylindrical bearings according to claim 1, wherein: and a large chamfer angle of the lower ring beam is arranged on one side of the inner ring and one side of the outer ring of the lower ring beam.
8. The self-lubricating snap-lock type spacer ring for three-row cylindrical bearings according to claim 7, wherein: the angle of the large chamfer angle of the lower ring beam is between 64 and 66 degrees.
9. The self-lubricating snap-lock type spacer ring for three-row cylindrical bearings according to claim 1, wherein: and the width of one side of the outer ring of the hole beam is smaller than that of one side of the inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021214226.9U CN212407339U (en) | 2020-06-28 | 2020-06-28 | Self-lubricating snap close type isolating ring for three-row cylindrical bearing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021214226.9U CN212407339U (en) | 2020-06-28 | 2020-06-28 | Self-lubricating snap close type isolating ring for three-row cylindrical bearing |
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| CN212407339U true CN212407339U (en) | 2021-01-26 |
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| CN202021214226.9U Active CN212407339U (en) | 2020-06-28 | 2020-06-28 | Self-lubricating snap close type isolating ring for three-row cylindrical bearing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677760A (en) * | 2020-06-28 | 2020-09-18 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Self-lubricating isolating ring for lock catch type three-row cylindrical bearing |
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2020
- 2020-06-28 CN CN202021214226.9U patent/CN212407339U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677760A (en) * | 2020-06-28 | 2020-09-18 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Self-lubricating isolating ring for lock catch type three-row cylindrical bearing |
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