CN107740811A - A kind of roller bearing - Google Patents
A kind of roller bearing Download PDFInfo
- Publication number
- CN107740811A CN107740811A CN201711123647.3A CN201711123647A CN107740811A CN 107740811 A CN107740811 A CN 107740811A CN 201711123647 A CN201711123647 A CN 201711123647A CN 107740811 A CN107740811 A CN 107740811A
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- CN
- China
- Prior art keywords
- spherical roller
- curvature
- radius
- roller
- raceway
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/06—Ball or roller bearings
- F16C23/08—Ball or roller bearings self-adjusting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/70—Bearing or lubricating arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/31—Wind motors
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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 invention discloses a kind of roller bearing, including outer ring, inner ring, the first retainer, the second retainer, the first spherical roller and the second spherical roller；Formed with the first raceway and the second raceway between outer ring and inner ring；The first retainer is provided with first raceway, the first retainer is provided with the first spherical roller, and the first spherical roller occurs to roll and then drives the first retainer to rotate, and the first spherical roller forms the first contact surface with inner ring；The second retainer is provided with second raceway, the second retainer is provided with the second spherical roller, and the second spherical roller occurs to roll and then drives the second retainer to rotate, and the second spherical roller forms the second contact surface with inner ring；The ratio of the radius of curvature of first spherical roller and the radius of curvature of the first contact surface is less than the ratio of the radius of curvature of the second spherical roller and the radius of curvature of the second contact surface.The present invention is applied to the uneven application scenarios of load assignment, and simple in construction, service life length.
Description
Technical field
The present invention relates to field of new energy technologies, and in particular to a kind of roller bearing.
Background technology
Wind-power electricity generation is with its green great attention for receiving world's every country, in recent years, wind-powered electricity generation industry development
It is quite rapid, bring wide market prospects for wind power generation bearing.Bearing is the important component of wind-driven generator, large-scale
In wind generator facility, the generator of windmill is generally arranged at tens meters of height, and windmill is provided with blade, and blade passes through wheel hub
It is in cantilever design to be connected with main shaft, and blade can drive main axis when being driven by wind-force, so as to convert wind energy into machinery
Electric energy and can be further converted to, self-aligning roller bearing is used for supports main shaft, is that the crucial of windmill forms part, actual operation
During, not only workload is big, risk is also high for the Inspection and maintenance of self-aligning roller bearing.
In the case where there is wind state, main shaft bears wind-force and acts on xial feed caused by blade and impeller axle deadweight institute simultaneously
Caused radial load, correspondingly, self-aligning roller bearing also bear radial load and xial feed and absorb the running phase simultaneously
Between main shaft inclination and flexure.It is emphasized that the xial feed that self-aligning roller bearing is born is more than radial load, far
Spherical roller from blade bears xial feed and radial load simultaneously, and the spherical roller close to blade is then subjected only to radial direction lotus
Carry.
Under windless condition, the blade of windmill does not rotate, and the load that now self-aligning roller bearing is born is mainly footpath
To load, close to the radial load that the spherical roller of blade is born compared to having the radial load that is born under wind state more
It is high.
In summary, there is following deficiency in self-aligning roller bearing of the prior art：
1st, by the load that is born of spherical roller away from blade is big, therefore, compared with the spherical roller close to blade
Its service life is also shorter；
2nd, by the load that is born of spherical roller away from blade is big, therefore, spherical roller and raceway away from blade
The pressure born of contact surface it is also big, correspondingly, frictional resistance and moment of torsion between the two can also increase.
3rd, because the load born close to the spherical roller of blade is small, therefore, phase can be produced between spherical roller and raceway
To sliding, so as to cause surface abrasion and scraping；
Although the size of increase bearing can bear high load with it and match, the spherical roller of low load side is come
Say that this technical scheme is unfavorable for saving material.Therefore, it is necessary to provide, a kind of reliability is high, service life is long and saving material
Self-aligning roller bearing be used for supports main shaft.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of service life length and are applied to what is operated under high load
Bearing.In order to solve the above-mentioned technical problem, the invention provides a kind of roller bearing, concrete technical scheme are as described below：
A kind of roller bearing, including outer ring, inner ring, the first retainer, the second retainer, the first spherical roller and the second ball
Face roller；
Formed with the first raceway and the second raceway between the outer ring and the inner ring；
First retainer is provided with first raceway, first retainer rolls provided with first sphere
Son, first spherical roller occur to roll and then drive first retainer to rotate, first spherical roller with it is described
Inner ring forms the first contact surface；
Second retainer is provided with second raceway, second retainer rolls provided with second sphere
Son, second spherical roller occur to roll and then drive second retainer to rotate, second spherical roller with it is described
Inner ring forms the second contact surface；
The ratio of the radius of curvature of the radius of curvature of first spherical roller and first contact surface is less than described the
The ratio of the radius of curvature of two spherical rollers and the radius of curvature of second contact surface.
Further, the radius of curvature of first spherical roller is less than the radius of curvature of second spherical roller, or
Person, the radius of curvature of first spherical roller are more than the radius of curvature of second spherical roller.
Further, the radius of curvature of first contact surface is more than the radius of curvature of second contact surface.
Further, the outer ring includes at least two outer coil units, and at least two outer coil units combine vertically
The outer ring is formed, has gap between the outer coil unit.
Further, in addition to prepressing device, the prepressing device are used for the gap for reducing the outer ring, the pre- press fitting
Nearly second raceway is rested against to set.
Further, first spherical roller uses symmetrical structure with second spherical roller.
Further, formed with the first intermediate rib, the side of first intermediate rib and first ball on the inner ring
One end contact of face roller, an end contact of the opposite side of first intermediate rib and second spherical roller.
Further, in addition to the 3rd raceway；
3rd raceway is formed between the outer ring and the inner ring, and a side of the 3rd raceway is close to institute
The first raceway is stated, another side of the 3rd raceway is close to second raceway；
It is provided with the 3rd retainer in 3rd raceway, the 3rd retainer is provided with the 3rd spherical roller, and described the
Three spherical rollers occur to roll and then drive the 3rd retainer to rotate；
The ratio of the radius of curvature of 3rd spherical roller and the radius of curvature of the 3rd raceway is more than described first
The ratio of the radius of curvature of spherical roller and the radius of curvature of first contact surface, and the curvature of the 3rd spherical roller half
The radius of curvature that footpath is less than second spherical roller with the ratio of the radius of curvature of the 3rd raceway contacts with described second
The ratio of the radius of curvature in face.
Further, the 3rd spherical roller uses symmetrical structure.
Further, on the inner ring formed with the first intermediate rib and the second intermediate rib,
The side of first intermediate rib and an end contact of first spherical roller, first intermediate rib
One end contact of opposite side and second spherical roller；
The side of second intermediate rib and another end contact of second spherical roller, first intermediate rib
Opposite side and the 3rd spherical roller an end contact.
Implement the invention has the advantages that：
1st, roller bearing service life provided by the invention is long, advantageously reduces maintenance workload and maintenance cost；
2nd, the structure for the roller bearing that invention provides is simple, reasonable stress, good reliability, can bear larger load；
3rd, the outer ring of roller bearing provided by the invention includes at least two outer coil units, is advantageous to using separation design
Realize the standardization and mass production of outer ring production.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the schematic cross-sectional view of roller bearing provided by the invention.
Wherein, 1- outer rings, 2- inner rings, the retainers of 3- first, the retainers of 4- second, the spherical rollers of 5- first, the balls of 6- second
Face roller, 7- annular flanges.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that the instruction such as term " on ", " under ", " top ", " bottom ", " interior ", " outer "
Orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of the description present invention and simplification retouched
State, rather than the device or element of instruction or hint meaning there must be specific orientation, with specific azimuth configuration and behaviour
Make, therefore be not considered as limiting the invention.In the description of the invention, " multiple " be meant that two or two with
On, unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, can make to be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；It can make to be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
Embodiment 1
Fig. 1 is the schematic cross-sectional view of roller bearing provided by the invention, as shown in figure 1, present embodiments providing a kind of rolling
Sub- bearing, including outer ring 1, inner ring 2, the first retainer 3, the second retainer 4, the first spherical roller 5 and the second spherical roller 6；
Formed with the first raceway and the second raceway between the outer ring 1 and the inner ring 2；First raceway and described the
One spherical roller 5, which coordinates, to be born and transmits external torque and tilting moment, second raceway are matched somebody with somebody with second spherical roller 6
Conjunction is born and transmits external torque and tilting moment.No matter come from the complexity of processing technology, or the complex angles of stress
Say, raceway is all the most weak link of bearing, by improve hardness or increase size be advantageous to improve bearing use quality and
Life-span, but correspondingly, also bring along the increase of bearing material dosage and cost.The present embodiment is directed to the load that bearing is born
Distribution situation is adjusted to bearing arrangement, and detailed scheme is as described below：
First retainer 3 is provided with first raceway, first retainer 3 rolls provided with first sphere
Son 5, first spherical roller 5 occur to roll and then drive first retainer 3 to rotate, first spherical roller 5 with
The inner ring 2 forms the first contact surface；
Second retainer 4 is provided with second raceway, second retainer 4 rolls provided with second sphere
Son 6, second spherical roller 6 occur to roll and then drive second retainer 4 to rotate, second spherical roller 6 with
The inner ring 2 forms the second contact surface；
The ratio of the radius of curvature of the radius of curvature of first spherical roller 5 and first contact surface is less than described the
The ratio of the radius of curvature of two spherical rollers 6 and the radius of curvature of second contact surface.
Specifically, second spherical roller 6 of roller bearing is relative with the second contact surface caused by second raceway
When larger, larger driving force and frictional resistance can prevent the second spherical roller 6 from reversing suffered by the second spherical roller 6, make
It is more stable.
Specifically, the load that first spherical roller 5 is born is larger, heightens the curvature of first spherical roller 5
Radius and the ratio of the radius of curvature of first contact surface, reduce contact area, advantageously reduce first spherical roller 5
Edge stress, so as to extend the service life of roller bearing.
Specifically, first retainer 3 and second retainer 4 are integrated punching shaping, and both is transversal
Face is shaped as " C " type, and first retainer 3 includes roller installation portion and technique chamfering, and institute with second retainer 4
The widest part and the line of bearing centre for stating roller installation portion are equal to nominal contact angle with the angle of bearing radial section；Need to refer to
Go out, although first retainer 3 is identical with the shape and structure of the second retainer 4, both sizes are different,
Specifically, first retainer 3, first spherical roller 5 and the first raceway three's size match；Described second
Retainer 4, second spherical roller 6 and the second raceway three's size match.
Specifically, the radius of curvature of first spherical roller 5 is less than the radius of curvature of second spherical roller 6, institute
The radius of curvature for stating the first contact surface is more than the radius of curvature of second contact surface.
Preferably, the outer ring 1 includes two outer coil units, and two outer coil units combine to be formed outside described vertically
1 is enclosed, has gap between the outer coil unit.It is pointed out that the outer ring 1 can also use monolithic construction.It is but logical
Cross and outer ring 1 is decomposed into by outer coil unit using split-type structural so that the processing of outer ring 1 is easier, it is easy to accomplish outer ring is single
The standardization and batch production of member.
Preferably, guided rings, the guided rings diametrically projection are provided with the axial direction between two outer coil units
Enter between first spherical roller 5 and second spherical roller 6 and on the outside of the retainer, the bearing working mistake
Cheng Zhong, the guided rings are clamped by two outer coil units.
The roller bearing that the present embodiment provides also includes prepressing device, and the prepressing device is used to reduce the outer ring 1
Gap, the prepressing device are set close to second raceway.
Preferably, first spherical roller 5 uses symmetrical structure with second spherical roller 6.Using symmetrical junction
The spherical roller of structure can optimize distribution of the load on whole roller, so, roller bear under all loading conditions should
Power is relatively low, therefore, is advantageous to extend the service life of bearing.
Specifically, formed with the first intermediate rib, the side of first intermediate rib and institute on the inner ring 2 of roller bearing
The way of contact for stating an end face of the first spherical roller 5 contacts for face, can be prevented by the area for increasing the first contact surface
First spherical roller reverses, and the opposite side of first intermediate rib connects with an end face of second spherical roller 6
The mode of touching is contacted for point, and interface pressure and moment of torsion can be reduced by the area for reducing the first contact surface.Specifically, described
The side shape of one intermediate rib matches with an end surface shape of first spherical roller 5, first intermediate rib it is another
Side is shaped as convex surface or plane.
Preferably, the both ends of the inner ring 2 are equipped with annular flange 7, and the annular flange 7 is used to limit spherical roller
Position.
To ensure the use quality of bearing and life-span, it is preferable that the roller bearing also includes sealing ring, and sealing ring is rolling
Dust-proof, moistureproof, waterproof action is mainly played in sub- bearing, is entered in use by setting sealing ring to solve roller bearing
Scale loses, and and can solves to avoid dust from entering pollution lubricating grease, lubricating oil, while also eliminates because large-scale granular substance enters
Enter and damage the hidden danger of bearing.
Implement the invention has the advantages that：
1st, roller bearing service life provided by the invention is long, advantageously reduces maintenance workload and maintenance cost；
2nd, the structure for the roller bearing that invention provides is simple, reasonable stress, good reliability, can bear larger load；
3rd, the outer ring of roller bearing provided by the invention includes at least two outer coil units, is advantageous to using separation design
Realize the standardization and mass production of outer ring production.
Embodiment 2
Present embodiments provide a kind of roller bearing, including outer ring 1, inner ring 2, the first retainer 3, the second retainer 4,
One spherical roller 5 and the second spherical roller 6；
Formed with the first raceway, the second raceway and the 3rd raceway between the outer ring 1 and the inner ring 2；
First retainer 3 is provided with first raceway, first retainer 3 rolls provided with first sphere
Son 5, first spherical roller 5 occur to roll and then drive first retainer 3 to rotate, first spherical roller 5 with
The inner ring 2 forms the first contact surface；
Second retainer 4 is provided with second raceway, second retainer 4 rolls provided with second sphere
Son 6, second spherical roller 6 occur to roll and then drive second retainer 4 to rotate, second spherical roller 6 with
The inner ring 2 forms the second contact surface；
One side of the 3rd raceway is close to first raceway, and another side of the 3rd raceway is close to institute
State the second raceway；The 3rd retainer is provided with 3rd raceway, the 3rd retainer is provided with the 3rd spherical roller, described
3rd spherical roller occurs to roll and then drives the 3rd retainer to rotate；
The ratio of the radius of curvature of the radius of curvature of first spherical roller 5 and first contact surface is less than described the
The ratio of the radius of curvature of three spherical rollers and the radius of curvature of the 3rd raceway, the radius of curvature of the 3rd spherical roller
It is less than the radius of curvature of second spherical roller 6 and second contact surface with the ratio of the radius of curvature of the 3rd raceway
Radius of curvature ratio.
Specifically, the radius of curvature of first spherical roller 5 is more than the radius of curvature of second spherical roller 6, institute
The radius of curvature for stating the first contact surface is more than the radius of curvature of second contact surface.
Specifically, the outer ring 1 includes three outer coil units, and three outer coil units combine to be formed outside described vertically
1 is enclosed, has gap between the outer coil unit.To reduce the gap between the outer coil unit, alternatively, the roller bearing is also
Including prepressing device, the prepressing device is set close to second raceway.
Preferably, first spherical roller 5, second spherical roller 6 and the 3rd spherical roller using pair
Claim structure.
Specifically, on the inner ring 2 formed with the first intermediate rib and the second intermediate rib, second intermediate rib and described the
The effect of one intermediate rib is similar.
Specifically, the side of first intermediate rib and an end contact of first spherical roller 5, described first
One end face of spherical roller 5 is convex configuration, to increase first intermediate rib and the end face of first spherical roller 5
Contact area, the concave surface that the side of first intermediate rib uses an end face with first spherical roller 5 to match are tied
Structure；
One end contact of the opposite side of first intermediate rib and second spherical roller 6, the second spherical roller 6
An end face be convex configuration, to reduce an end of the opposite side of first intermediate rib and second spherical roller 6
The contact area in face, the opposite side of first intermediate rib use planar structure.
For the same purposes, the side of second intermediate rib is arranged to concave structure in the present embodiment, it is described recessed
Face structure matches with the other end of second spherical roller 6；The opposite side of second intermediate rib is arranged to planar junction
Structure, the planar structure are in that point contacts with an end face of the 3rd spherical roller.
Implement the invention has the advantages that：
1st, roller bearing service life provided by the invention is long, advantageously reduces maintenance workload and maintenance cost；
2nd, the structure for the roller bearing that invention provides is simple, reasonable stress, good reliability, can bear larger load；
3rd, the outer ring of roller bearing provided by the invention includes at least two outer coil units, is advantageous to using separation design
Realize the standardization and mass production of outer ring production.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the feature for combining the embodiment or example description
It is contained at least one embodiment or example of the present invention.In this manual, need not to the schematic representation of above-mentioned term
It is directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
Combined in an appropriate manner in one or more embodiments or example.In addition, those skilled in the art can be by described in this specification
Different embodiments or example engaged and combined.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifications and variations.
Claims (10)
1. a kind of roller bearing, it is characterised in that including outer ring (1), inner ring (2), the first retainer (3), the second retainer
(4), the first spherical roller (5) and the second spherical roller (6)；
Formed with the first raceway and the second raceway between the outer ring (1) and the inner ring (2)；
First retainer (3) is provided with first raceway, first retainer (3) is rolled provided with first sphere
Sub (5), first spherical roller (5) occur to roll and then drive first retainer (3) to rotate, the first sphere rolling
Sub (5) form the first contact surface with the inner ring (2)；
Second retainer (4) is provided with second raceway, second retainer (4) is rolled provided with second sphere
Sub (6), second spherical roller (6) occur to roll and then drive second retainer (4) to rotate, the second sphere rolling
Sub (6) form the second contact surface with the inner ring (2)；
The ratio of the radius of curvature of first spherical roller (5) and the radius of curvature of first contact surface is less than described second
The ratio of the radius of curvature of spherical roller (6) and the radius of curvature of second contact surface.
2. roller bearing according to claim 1, it is characterised in that the radius of curvature of first spherical roller (5) is small
In the radius of curvature of second spherical roller (6), or, the radius of curvature of first spherical roller (5) is more than described the
The radius of curvature of two spherical rollers (6).
3. roller bearing according to claim 1, it is characterised in that the radius of curvature of first contact surface is more than described
The radius of curvature of second contact surface.
4. roller bearing according to claim 1, it is characterised in that the outer ring (1) includes at least two outer coil units,
At least two outer coil units combine to form the outer ring (1) vertically, have gap between the outer coil unit.
5. roller bearing according to claim 4, it is characterised in that be also used for including prepressing device, the prepressing device
The gap of the outer ring (1) is reduced, the prepressing device is set close to second raceway.
6. roller bearing according to claim 1, it is characterised in that first spherical roller (5) and second ball
Face roller (6) uses symmetrical structure.
7. roller bearing according to claim 1, it is characterised in that formed with the first intermediate rib, institute on the inner ring (2)
State the side of the first intermediate rib and an end contact of first spherical roller (5), the opposite side of first intermediate rib
With an end contact of second spherical roller (6).
8. roller bearing according to claim 1, it is characterised in that also including the 3rd raceway；
3rd raceway is formed between the outer ring (1) and the inner ring (2), and a side of the 3rd raceway is close
First raceway, another side of the 3rd raceway is close to second raceway；
The 3rd retainer is provided with 3rd raceway, the 3rd retainer is provided with the 3rd spherical roller, the 3rd ball
Face roller occurs to roll and then drives the 3rd retainer to rotate；
The ratio of the radius of curvature of 3rd spherical roller and the radius of curvature of the 3rd raceway is more than first sphere
The ratio of the radius of curvature of roller (5) and the radius of curvature of first contact surface, and the curvature of the 3rd spherical roller half
The radius of curvature that the ratio of footpath and the radius of curvature of the 3rd raceway is less than second spherical roller (6) connects with described second
The ratio of the radius of curvature of contacting surface.
9. roller bearing according to claim 8, it is characterised in that the 3rd spherical roller uses symmetrical structure.
10. roller bearing according to claim 8, it is characterised in that on the inner ring (2) formed with the first intermediate rib and
Second intermediate rib,
The side of first intermediate rib and an end contact of first spherical roller (5), first intermediate rib
Opposite side and an end contact of second spherical roller (6)；
The side of second intermediate rib and another end contact of second spherical roller (6), first intermediate rib
Opposite side and the 3rd spherical roller an end contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711123647.3A CN107740811A (en) | 2017-11-14 | 2017-11-14 | A kind of roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711123647.3A CN107740811A (en) | 2017-11-14 | 2017-11-14 | A kind of roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107740811A true CN107740811A (en) | 2018-02-27 |
Family
ID=61234655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711123647.3A Pending CN107740811A (en) | 2017-11-14 | 2017-11-14 | A kind of roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107740811A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022016832A1 (en) * | 2020-07-22 | 2022-01-27 | 山东省宇捷轴承制造有限公司 | Self-aligning roller bearing for axial or radial eccentric loading operation conditions, and heat treatment process |
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|---|---|---|---|---|
| US20070127858A1 (en) * | 2003-11-18 | 2007-06-07 | Naoki Nakagawa | Double-row self-aligning roller bearing and device for supporting wind turbine generator main shaft |
| CN104455006A (en) * | 2014-11-28 | 2015-03-25 | 新昌县利利红轴承有限公司 | Self-aligning roller bearing convenient to mount |
| CN106438683A (en) * | 2016-10-28 | 2017-02-22 | 国电联合动力技术有限公司 | Spherical roller bearing and wind turbine main shaft transmission chain system comprising same |
-
2017
- 2017-11-14 CN CN201711123647.3A patent/CN107740811A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070127858A1 (en) * | 2003-11-18 | 2007-06-07 | Naoki Nakagawa | Double-row self-aligning roller bearing and device for supporting wind turbine generator main shaft |
| CN104455006A (en) * | 2014-11-28 | 2015-03-25 | 新昌县利利红轴承有限公司 | Self-aligning roller bearing convenient to mount |
| CN106438683A (en) * | 2016-10-28 | 2017-02-22 | 国电联合动力技术有限公司 | Spherical roller bearing and wind turbine main shaft transmission chain system comprising same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022016832A1 (en) * | 2020-07-22 | 2022-01-27 | 山东省宇捷轴承制造有限公司 | Self-aligning roller bearing for axial or radial eccentric loading operation conditions, and heat treatment process |
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Application publication date: 20180227 |