CN212389660U - Turntable bearing with L-shaped retainer - Google Patents
Turntable bearing with L-shaped retainer Download PDFInfo
- Publication number
- CN212389660U CN212389660U CN202021214260.6U CN202021214260U CN212389660U CN 212389660 U CN212389660 U CN 212389660U CN 202021214260 U CN202021214260 U CN 202021214260U CN 212389660 U CN212389660 U CN 212389660U
- Authority
- CN
- China
- Prior art keywords
- retainer
- bearing
- radial
- outer ring
- inner 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.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 10
- 238000005728 strengthening Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model belongs to the technical field of bearing equipment manufacturing, in particular to a turntable bearing with an L-shaped retainer, which comprises an inner ring, an outer ring, a retainer and a steel ball; the steel ball is held between the inner ring raceway and the outer ring raceway through a retainer, and the retainer is bent inwards or outwards to form a radial reinforcing rib. The retainer of the utility model has high strength and thin thickness, and the reinforcing ribs can strengthen the strength of the retainer; because the retainer is thinned, the bearing ring is thickened, and the strength is increased; the contact range of the roller path is enlarged; therefore, under the condition that the bearing has the same overall dimension and the same size of the steel balls, the bearing with the reinforced retainer has stronger bearing capacity and longer service life; in other words, under the same load working condition, the bearing using the reinforced retainer is smaller and more compact in size, and the bearing cost is reduced, so that the sizes of the blades connected with the reinforced retainer and the hub or the sizes of the rack and the tower drum are reduced, and the fan cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of the bearing equipment is made, concretely relates to carousel bearing with L type holder.
Background
The wind generating set has bad operation condition and high operation and maintenance cost, so the requirements on each part of the fan are extremely strict. As a large megawatt wind generating set becomes the main direction of future wind power development, the diameter of a wind wheel and the capacity of a single machine of the large megawatt wind generating set are obviously increased, the size of a corresponding variable-pitch bearing is increased, and meanwhile, related connecting pieces of the bearing are required to be correspondingly increased, so that the influence on the cost of the whole machine is very large. The variable pitch bearing is a large turntable bearing with a special structure, which can bear large comprehensive loads such as axial load, radial load, overturning moment and the like, and integrates multiple functions such as supporting, rotating, transmitting, fixing and the like, the variable pitch bearing and the yaw bearing are used as important parts of the fan, and the service life of the variable pitch bearing directly influences the maintenance cost of the fan. In order to meet the requirements of high bearing capacity, long service life and high reliability, the novel variable pitch bearing for the fan, which is compact in structure and strong in bearing capacity, is researched.
Disclosure of Invention
According to the influence of the prior art, under the trends of gradual increase of models and gradual lengthening of blades, the use working conditions of yaw and pitch bearings are increasingly complex, and meanwhile, fans face increasing cost pressure. For satisfying the bearing height and bear, the requirement of high reliability, reduce the bearing cost, the utility model aims at providing a carousel bearing with subtract slim L type holder.
In order to achieve the above object, the utility model adopts the following technical scheme: a turntable bearing with an L-shaped retainer comprises an inner ring, an outer ring, a retainer and a steel ball; the steel ball is held between the inner ring raceway and the outer ring raceway through a retainer, and the retainer is bent inwards or outwards to form a radial reinforcing rib.
Furthermore, sealing rings are arranged on two sides of the bearing respectively and are arranged between the inner ring and the outer ring.
Furthermore, radial protrusions are arranged at the inner ring roller path and the outer ring roller path and matched with radial reinforcing ribs of the retainer.
Furthermore, radial reinforcing ribs in different directions are respectively arranged on two sides of the retainer.
Furthermore, the turntable bearing is a single-row ball type turntable bearing, one side of the retainer is bent inwards to form a radial reinforcing rib and is matched with the radial protrusion of the inner ring raceway, and the other side of the retainer is bent outwards to form a radial reinforcing rib and is matched with the radial protrusion of the outer ring raceway.
Furthermore, one side of the retainer is provided with a radial reinforcing rib which is bent inwards or outwards.
Furthermore, the turntable bearing is a double-row ball type turntable bearing, two rows of rollers are held between an inner ring and an outer ring of the bearing through two retainers, one of the retainers is bent inwards at one side close to the end face of the bearing to form radial reinforcing ribs and is matched with the radial protrusions of the inner ring raceway, and the other retainer is bent outwards at one side close to the end face of the bearing to form radial reinforcing ribs and is matched with the radial protrusions of the outer ring raceway.
Based on above-mentioned technical scheme, compare ordinary bearing, the utility model discloses following advantage has:
1. the utility model relates to a holder intensity is high, thickness is thin, utilizes processing methods such as bending to form radial strengthening rib in the upper end of holder or lower extreme, and the mounted position according to the holder decides this strengthening rib and finally inclines or the external diameter side at the internal diameter of holder.
2. The strengthening rib that this holder related can strengthen the intensity of holder, consequently, the holder of equal intensity, the utility model discloses a board of strenghthened type holder is thick to be obviously less than ordinary holder, can practice thrift the holder cost.
3. Under the same and the same condition of steel ball size of bearing overall dimension, install the utility model relates to a bearing of strenghthened type holder, because of its holder board is thick thin for ordinary holder, can make the bearing ring width increase, increase lasso intensity, improve bearing capacity.
4. Under the same and the same condition of steel ball size of bearing overall dimension, the installation the utility model relates to a strenghthened type holder's bearing is thin for ordinary holder because of its holder board is thick, and the lasso width increases, and the contact range increase of steel ball and raceway, steel ball and raceway area of contact increase promptly reduce the hertzian stress that produces between steel ball and the raceway, and the transmission of stress is more even in making the lasso, improves the bearing capacity of bearing, extension bearing life.
5. Under the condition that the bearing has the same overall dimension and the steel balls have the same size, the strength of the bearing using the reinforced retainer is better.
The utility model has the advantages that: the retainer of the utility model has high strength and thin thickness, and the reinforcing ribs can strengthen the strength of the retainer; because the retainer is thinned, the bearing ring is thickened, and the strength is increased; the contact range of the roller path is enlarged; therefore, under the condition that the bearing has the same overall dimension and the same size of the steel balls, the bearing with the reinforced retainer has stronger bearing capacity and longer service life; in other words, under the same load working condition, the bearing using the reinforced retainer is smaller and more compact in size, and the bearing cost is reduced, so that the sizes of the blades connected with the reinforced retainer and the hub or the sizes of the rack and the tower drum are reduced, and the fan cost is reduced.
Drawings
FIG. 1 is a schematic view of a retainer bent inward to form radial ribs;
FIG. 2 is a schematic view of the retainer bent outward to form radial ribs;
FIG. 3 is a schematic view of a single row ball type slewing bearing in embodiment 1;
FIG. 4 is a schematic view of a double row ball type slewing bearing according to embodiment 2;
FIG. 5 is a schematic view of a contact angle of a conventional cage;
fig. 6 is a schematic view of a contact angle of the retainer of the present invention;
in the figure: 1. the steel ball bearing comprises an outer ring 2, an inner ring 3, steel balls 4, a retainer 5, radial protrusions 6, a sealing ring 7 and radial reinforcing ribs.
Detailed Description
In order to make the structure and function of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solution in the embodiments of the present invention.
Example 1
Referring to fig. 3, a turntable bearing with an L-shaped retainer comprises an inner ring 2, an outer ring 1, a retainer 4 and a steel ball 2; the steel ball 2 is held between the inner ring raceway and the outer ring raceway through the retainer 4, the turntable bearing is a single-row ball type turntable bearing, one side of the retainer is bent inwards to form a radial reinforcing rib and is matched with the radial protrusion of the inner ring raceway, and the other side of the retainer is bent outwards to form a radial reinforcing rib and is matched with the radial protrusion of the outer ring raceway.
Further, two sides of the bearing are respectively provided with a sealing ring 6, and the sealing ring 6 is arranged between the inner ring 2 and the outer ring 1. The inner ring 2 and the outer ring 1 are tightly matched, the steel ball is completely wrapped in the raceway and is matched with the radial bulge of the bearing through the radial reinforcing rib of the retainer, and the gap between the inner ring 2 and the outer ring 1 is in interference contact sealing through the sealing ring 6, so that the bearing can bear larger axial force conveniently.
Example 2
Referring to the attached drawings 1-2 and 4-5, the turntable bearing with the L-shaped retainer comprises an inner ring 2, an outer ring 1, a retainer 4 and a steel ball 2; the steel ball 2 is held between the inner ring raceway and the outer ring raceway through the retainer 4, the turntable bearing is a double-row ball type turntable bearing, two rows of rollers are held between the inner ring and the outer ring of the bearing through the two retainers, one retainer is bent inwards to form a radial reinforcing rib at one side close to the end face of the bearing and is matched with the radial protrusion of the inner ring raceway, and the other retainer is bent outwards to form a radial reinforcing rib at one side close to the end face of the bearing and is matched with the radial protrusion of the outer ring raceway.
Further, two sides of the bearing are respectively provided with a sealing ring 6, and the sealing ring 6 is arranged between the inner ring 2 and the outer ring 1. The inner ring 2 and the outer ring 1 are tightly matched, the steel ball 3 is completely wrapped in the raceway and is matched with the radial bulge 5 of the bearing through the radial reinforcing rib 7 of the retainer, and the gap between the inner ring 2 and the outer ring 1 is in interference contact sealing through the sealing ring 6, so that the bearing can bear larger axial force conveniently.
See above two kinds of technical scheme, the utility model discloses following effect has:
1. the utility model relates to a holder intensity is high, thickness is thin, utilizes processing methods such as bending to form radial strengthening rib in the upper end of holder or lower extreme, and the mounted position according to the holder decides this strengthening rib and finally can see figure 3, figure 4 in the internal diameter side or the external diameter side of holder, concrete structure and mounting form.
2. The reinforcing rib related to the retainer can strengthen the strength of the retainer, so that the plate thickness of the reinforced retainer is obviously smaller than that of the common retainer for the retainer with the same strength, and the cost of the retainer can be saved.
3. Under the same and the same condition of steel ball size of bearing overall dimension, install the utility model relates to a bearing of strenghthened type holder, because of its holder board is thick thin for ordinary holder, can make the bearing ring width increase, increase lasso intensity, improve bearing capacity.
4. Under the same and the same condition of steel ball size of bearing overall dimension, install the utility model relates to a bearing of strenghthened type holder, because of its holder board is thick thin for ordinary holder, the lasso width increases, the contact range increase of steel ball and raceway, as shown in fig. 5 and 6, it is obvious that angle beta > angle alpha, steel ball and raceway area of contact increase promptly, reduce the hertz stress that produces between steel ball and the raceway, the transmission of stress is more even in making the lasso, improves the bearing capacity of bearing, extension bearing life.
5. Under the condition that the bearing has the same overall dimension and the steel balls have the same size, the strength of the bearing using the reinforced retainer is better. Therefore, under the same load working condition, the size of the bearing using the reinforced retainer is smaller and more compact, and the cost of the bearing is reduced, so that the sizes of the blades connected with the bearing, the hub or the frame and the tower drum are reduced, and the cost of the fan is reduced.
The above list is only the preferred embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.
Claims (6)
1. The utility model provides a carousel bearing with L type holder which characterized in that: comprises an inner ring, an outer ring, a retainer and a steel ball; the steel ball is held between the inner ring raceway and the outer ring raceway through a retainer, and the retainer is bent inwards or outwards to form a radial reinforcing rib.
2. The slewing bearing with L-shaped cage according to claim 1, wherein: radial protrusions are arranged at the inner ring roller path and the outer ring roller path and matched with radial reinforcing ribs of the retainer.
3. The slewing bearing with L-shaped cage according to claim 2, wherein: radial reinforcing ribs in different directions are respectively arranged on two sides of the retainer.
4. A slewing bearing with L-shaped cages according to claim 3, wherein: the turntable bearing is a single-row ball type turntable bearing, one side of the retainer is bent inwards to form a radial reinforcing rib and matched with the radial protrusion of the inner ring raceway, and the other side of the retainer is bent outwards to form a radial reinforcing rib and matched with the radial protrusion of the outer ring raceway.
5. The slewing bearing with L-shaped cage according to claim 2, wherein: one side of the retainer is provided with a radial reinforcing rib which is bent inwards or outwards.
6. The slewing bearing with L-shaped cage according to claim 5, wherein: the turntable bearing is a double-row ball type turntable bearing, two rows of rollers are held between an inner ring and an outer ring of the bearing through two retainers, one retainer is bent inwards at one side close to the end face of the bearing to form radial reinforcing ribs and matched with the radial protrusions of the inner ring raceway, and the other retainer is bent outwards at one side close to the end face of the bearing to form radial reinforcing ribs and matched with the radial protrusions of the outer ring raceway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021214260.6U CN212389660U (en) | 2020-06-28 | 2020-06-28 | Turntable bearing with L-shaped retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021214260.6U CN212389660U (en) | 2020-06-28 | 2020-06-28 | Turntable bearing with L-shaped retainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212389660U true CN212389660U (en) | 2021-01-22 |
Family
ID=74255787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021214260.6U Active CN212389660U (en) | 2020-06-28 | 2020-06-28 | Turntable bearing with L-shaped retainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212389660U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677761A (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 | Turntable bearing with L-shaped retainer |
-
2020
- 2020-06-28 CN CN202021214260.6U patent/CN212389660U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677761A (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 | Turntable bearing with L-shaped retainer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8414448B2 (en) | Gear system for wind turbine | |
| US20100092120A1 (en) | Bearing with alternative load path for extreme loads | |
| DK2715162T3 (en) | Large roller bearing | |
| CN210106408U (en) | Axial high-bearing-capacity shield machine main bearing with novel structure | |
| CN212389660U (en) | Turntable bearing with L-shaped retainer | |
| US11725633B2 (en) | Pitch bearing for a wind turbine | |
| EP3742010A1 (en) | System and method for assembling a slewing ring bearing with a predetermined preload | |
| US9822814B2 (en) | Bearing for combined loads | |
| CN212744706U (en) | Multi-row roller turntable bearing | |
| CN111677761A (en) | Turntable bearing with L-shaped retainer | |
| CN101413533A (en) | Special structure four-point contact ball bearing | |
| CN211175001U (en) | Double-row conical main shaft bearing retainer | |
| CN207715543U (en) | A kind of split type pitch variable bearings of T shapes ditch right angle contact | |
| CN201083232Y (en) | Double-row column roller bearing with aligning ring | |
| CN207393742U (en) | A kind of self-aligning thrust roller bearing | |
| CN210484409U (en) | Cylindrical roller bearing of wind power speed increasing box | |
| CN208024711U (en) | Double-row angular contact bal bearing | |
| CN110886770A (en) | Double-row conical main shaft bearing retainer | |
| CN201513472U (en) | Novel single-row self-aligning roller bearing | |
| CN216618266U (en) | Multi-row roller turntable bearing for wind driven generator | |
| CN211525340U (en) | Thrust ball bearing capable of bearing radial load | |
| CN112955671A (en) | Rolling bearing device and wind power installation | |
| CN219672778U (en) | Yaw bearing assembly of wind driven generator and wind driven generator | |
| CN205780340U (en) | Three-row roller wire roller bearing | |
| CN216741844U (en) | Device for preventing wind turbine generator system main shaft system from moving backwards |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231206 Address after: 116000 Zhuhua Industrial Park, Wafangdian City, Dalian City, Liaoning Province Patentee after: Wafangdian City bearing group wind power Bearing Co.,Ltd. Address before: 116300 Wafangdian Bearing Industrial Park, Dalian City, Liaoning Province Patentee before: WAFANGDIAN BEARING GROUP NATIONAL BEARING ENGINEERING TECHNOLOGY RESEARCH CENTER Co.,Ltd. |