CN207033994U - Goalpost formula roller bearing and there is its wind power generating set - Google Patents
Goalpost formula roller bearing and there is its wind power generating set Download PDFInfo
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- CN207033994U CN207033994U CN201721000855.XU CN201721000855U CN207033994U CN 207033994 U CN207033994 U CN 207033994U CN 201721000855 U CN201721000855 U CN 201721000855U CN 207033994 U CN207033994 U CN 207033994U
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Abstract
The utility model provides a kind of goalpost formula roller bearing and has its wind power generating set.Goalpost formula roller bearing includes：First lap and second encloses, one in the outer ring and inner ring of the goalpost that cooperates with the other to form formula roller bearing；3rd circle, another in the outer ring and inner ring of the goalpost formula roller bearing is formed, is coordinated with first lap and the second circle, to form receiving space；Two row axial direction rollers, it is respectively received in the space formed by first lap and the 3rd circle and is enclosed by the second circle and the 3rd in the space formed；One row's radial bulbous roller, it is contained in the space formed by first lap and the second circle with the 3rd circle, wherein, first lap is formed with the first recess, second circle is formed with the second recess, for 3rd circle formed with the 3rd recess, the first recess, the second recess and the 3rd recess form the space for accommodating row's radial bulbous roller together.The projected life for meeting goalpost formula roller bearing according to goalpost formula roller bearing of the present utility model requires, and cost reduces.
Description
Technical field
It the utility model is related to wind power generation field, more particularly to a kind of goalpost formula roller bearing and the wind-force hair with it
Group of motors.
Background technology
At present, in the operating mode for bearing high axial force, high radial power, high tilting moment, and physical dimension it is limited, into
This control, assembling control etc. have under the design environment of high requirement, usually using three-row cylinder roller bearing as rotation branch
Support part part.For example, three-row roller bearing can be used as base bearing, yaw, pitch variable bearings of Large-scale Wind Turbines etc., three
The utilization rate more and more higher of row roller bearing, it is one of important development trend of following big megawatt wind driven generator group.
Conventional three-row cylinder roller bearing generally includes the axial cylindrical roller and one that two rows are used to bear axial force
The radial direction cylindrical roller for bearing radial load is arranged, three-row cylinder roller can also bear the tilting moment in outer load simultaneously.Setting
When meter is checked, the projected life of three-row roller bearing is generally built upon before having controllable precise gap between roller and raceway
Put, ensure that roller and raceway are in good contact condition so that roller and raceway will not tension will not also relax, and roll
Son without deflection, without unbalance loading, without lodging etc..However, in actual use, due to processing and manufacturing error, bearing internal external circle temperature
Difference change, assembling limitation etc. influence, and easily make to be difficult between roller and raceway to keep precise gaps during design, cause roller with
The generation of raceway tension or relaxation, unstable wear and crackle, significantly affect the life-span of bearing.Comparatively speaking, radial load load is born
Cylindrical roller life-span of lotus reduces especially pronounced, often fails at first, it is ensured that bearing there is life-span when designing, it is necessary to
Reduce the influence of above-mentioned factor, this generally requires to pay high cost price.
Utility model content
In order to solve the technical problem of short life existing for existing three-row cylinder roller bearing, the utility model provides a kind of
Goalpost roller combine goalpost formula roller bearing, according to goalpost formula roller bearing of the present utility model ensure stronger axial direction,
Radially, in the case of tilting moment bearing capacity, it disclosure satisfy that the projected life of goalpost formula roller bearing requires, and cost drops
It is low.
One side of the present utility model provides a kind of goalpost formula roller bearing, and the goalpost formula roller bearing includes：First
Circle and the second circle, the outer ring for the goalpost formula roller bearing that cooperates with the other to form；3rd circle, with the first lap and described the
Two circles coordinate, to form receiving space；Two row axial direction rollers, it is respectively received in what is formed by the first lap and the 3rd circle
Space and by the described second circle and the described 3rd space that is formed of circle；One row's radial bulbous roller, it is contained in by described
In the space that one circle and second circle are formed with the described 3rd circle, wherein, the first lap is formed with the first recess, the second circle
Formed with the second recess, the 3rd circle is formed with the 3rd recess, first recess, second recess and described 3rd recessed
Portion forms the space for accommodating the row radial bulbous roller together.
According to the utility model, a part for the 3rd circle can be between the two rows axial direction roller.
According to the utility model, the 3rd circle may also be formed with the 4th recessed for accommodate the two rows axial direction roller
Portion.
According to the utility model, the goalpost formula roller bearing may also include positioned at the first lap and it is described second circle with
Dynamic sealing portion between 3rd circle.
According to the utility model, the two rows axial direction roller can be cylindrical roller.
According to the utility model, the two rows axial direction roller can be taper roller.
According to the utility model, can be formed on the 3rd recess fluted.
Another aspect of the present utility model provides a kind of wind power generating set, and the wind power generating set includes at least one
Rotary part and at least one stationary parts, at least one rotary part and at least one stationary parts pass through goalpost
Formula roller bearing is rotatably attached each other.
According to the utility model, at least one rotary part may include that wheel hub and/or main shaft and/or generator turn
Son.
According to the utility model, at least one stationary parts may include generator unit stator.
Sensitiveness of the bearing roller to changed play can be reduced according to goalpost formula roller bearing of the present utility model, improved
Bearing life.
According to goalpost formula roller bearing of the present utility model, the requirement to goalpost formula roller bearing clearance is reduced, reduces ball
Tension, the excessively possibility of pine or unbalance loading occur for pillar roller bearing, so as to ensure that goalpost formula roller bearing meets that projected life requires,
Reduce cost.
Brief description of the drawings
Fig. 1 is the sectional view according to the goalpost formula roller bearing of the first exemplary embodiment of the present utility model；
Fig. 2 is footpath when being in the first clearance according to the goalpost formula roller bearing of the first exemplary embodiment of the present utility model
Contact design sketch between spherical roller and first lap, the second circle and the 3rd circle；
Fig. 3 is to be in be more than the first clearance according to the goalpost formula roller bearing of the first exemplary embodiment of the present utility model
The second clearance when radial bulbous roller and first lap, second circle the 3rd circle between contact design sketch；
Fig. 4 is the sectional view according to the goalpost formula roller bearing of the second exemplary embodiment of the present utility model.
Embodiment
Exemplary embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.Throughout the specification,
Identical label indicates identical part all the time.
Fig. 1 is the sectional view according to the goalpost formula roller bearing of the first exemplary embodiment of the present utility model.
As shown in figure 1, included according to the goalpost formula roller bearing of the first exemplary embodiment of the present utility model：First lap
1 and second circle 2, one in the outer ring and inner ring of the goalpost that cooperates with the other to form formula roller bearing；3rd circle 6, described in formation
Another in the outer ring and inner ring of goalpost formula roller bearing, coordinate with the circle of first lap 1 and second 2, to form receiving space；Two
Axial roller 4 is arranged, the space formed by the circle of first lap 1 and the 3rd 6 is respectively received in and is formed by the second circle 2 and the 3rd circle 6
Space in；One row's radial bulbous roller 3, it is contained in the space formed by the circle 6 of the circle of first lap 1 and second 2 and the 3rd, its
In, first lap 1 is formed with the first recess 10, and the second circle 2 is formed with the second recess 20, and the 3rd circle 6 is formed with the 3rd recess 30, and the
One recess 10, the second recess 20 and the 3rd recess 30 form the space for accommodating the row radial bulbous roller 3 together.Its
In, the two rows axial direction roller 4 is mainly used in bearing axial load；The one row radial bulbous roller 3 is mainly used in bearing footpath
To load.
According in embodiment of the present utility model, the 3rd circle 6 can be between the two rows axial direction roller 4.3rd circle 6
It may also be formed with the 4th recess 60 for accommodating the two rows axial direction roller 4.
According in embodiment of the present utility model, goalpost formula roller bearing may also include positioned at the circle of first lap 1 and second 2
With the dynamic sealing portion 5 between the 3rd circle 6.The dynamic sealing 5 plays a part of bearing seal, prevents oil leak from arriving
The outside of goalpost formula roller bearing.
Alternatively, the circle of first lap 1 and second 2 can have fastener connecting hole, when assembling, can by fastener with it is required
Assembly parts connect.Similarly, the 3rd circle 6 can have fastener connecting hole, in assembling, can pass through fastener and required assembly parts
Connection.For example, fastener can be the connectors such as bolt, screw, pin, rivet.
As described in Figure 1, two row axial direction rollers 4 can be placed flatly, be primarily subjected to axial load.One row's radial bulbous roller
3 contact with the circle 6 of the circle of first lap 1, second 2 and the 3rd, substantial radial load.The two rows axial direction roller 4 and described one
Arrange the shared tilting moment load of radial bulbous roller 3.
Alternatively, can be formed on the 3rd recess 30 it is fluted, the groove be used for store lubricating oil, to ensure radial direction ball
Shape roller 3 smooth contacts with the 3rd circle 6.The size and location of the groove is unrestricted, as long as enabling to radial bulbous to roll
Smooth contact between the circle 6 of son 3 and the 3rd.In addition, formed on the 3rd recess 30 it is fluted in the case of, can also reduce
The contact length of contact is hardened between the circle of radial bulbous roller 3 and the 3rd 6, so as to cost-effective.Although groove is shown in figure
For semicircle, but according to the shape not limited to this of groove of the present utility model, it can be arc, rectangle or other are suitable
Shape.
Fig. 2 is to show to be in the first clearance according to the goalpost formula roller bearing of the first exemplary embodiment of the present utility model
When radial bulbous roller 3 and the circle 6 of the circle of first lap 1, second 2 and the 3rd between contact design sketch；Fig. 3 is shown according to this practicality
Radial bulbous is rolled when the goalpost formula roller bearing of the first new exemplary embodiment is in the second clearance more than the first clearance
Contact design sketch between son 3 and the circle 6 of the circle of first lap 1, second 2 and the 3rd.
The goalpost formula Roller Shaft according to the first exemplary embodiment of the present utility model is described referring to Fig. 2 and Fig. 3
Hold when being in different clearance, the contact situation between radial bulbous roller 3 and the circle 6 of the circle of first lap 1, second 2 and the 3rd.
As shown in Fig. 2 (it is less than normal design clearance, normal design when goalpost formula roller bearing is in the first clearance
Clearance refers to the radial bulbous roller 3 of goalpost formula roller bearing and the circle 6 of the circle of first lap 1, second 2 and the 3rd is in optimum contacting state
When clearance, a point, a point on the second circle 2 and two on the 3rd circle 6 on radial bulbous roller 3 and first lap 1
Individual total of four point contact, now, line and horizontal folder between the centre of sphere of each contact point and radial bulbous roller 3
Angle, i.e. contact angle α) when, most preferably connect although radial bulbous roller 3 can not be in the circle 6 of the circle of first lap 1, second 2 and the 3rd
The state of touching, but be maintained to contact, and now contact angle α slightly becomes big, is become by α for α1, and contact angle α's is slight
Change the performance impact very little for goalpost formula roller bearing.Will not be as using cylindrical roller, due to cylindrical roller and the
Contact tension between one circle the 1, second circle 2 and the 3rd circle 6 and cause cylindrical roller stand under load bigger than normal, cause cylindrical roller conquassation and drop
Low bearing life.
As shown in figure 3, when goalpost formula roller bearing is in the second clearance (being more than normal design clearance), radial bulbous
Although roller 3 can not be in optimum contacting state with the circle 6 of the circle of first lap 1, second 2 and the 3rd, it is maintained to contact,
And now contact angle α slightly diminishes, become by α for α2, and contact angle α slight change is for the performance of goalpost formula roller bearing
Influence very little.Will not be as using cylindrical roller, because cylindrical roller and the circle 6 of the circle of first lap 1, second 2 and the 3rd are indirect
Touch pine and caused cylindrical roller stand under load in stand under load uneven or produce unbalance loading, and caused bearing capacity to decline, and reduce the bearing longevity
Life.
As can be seen here, although, can be made due to processing according to goalpost formula roller bearing of the present utility model in the course of the work
Making error, 6 difference variations of circle of the circle of first lap 1, second 2 and the 3rd of goalpost formula roller bearing, assembling limitation etc. influences first lap
1st, the gap between the second circle 2 and the 3rd circle 6 and radial bulbous roller 3, but due to the radial bulbous using above-mentioned 4 points contacts
Roller 3, so the gap difference between the circle 6 of the circle of first lap 1, second 2 and the 3rd and radial bulbous roller 3 is only so that goalpost formula
Contact angle during roller bearing stand under load between 4 points of contact radial bulbous rollers 3 and the circle 6 of the circle of first lap 1, second 2 and the 3rd occurs
Change, now radial bulbous roller 3 still preferably can play a part of carrying and be unlikely to premature deterioration.
As shown in figure 1, according to two rows of the goalpost formula roller bearing of the first exemplary embodiment of the present utility model axial direction
Roller 4 is cylindrical roller.
Alternatively, as shown in figure 4, according to the goalpost formula roller bearing of the second exemplary embodiment of the present utility model two
It is taper roller to arrange axial roller 40.Except axial roller shape and with axial roller coordinate first lap 1 part and
Outside the shape of the part of second circle 2, according to the goalpost formula roller bearing and root of the second exemplary embodiment of the present utility model
Structure according to the goalpost formula roller bearing of the first exemplary embodiment of the present utility model is identical.According to of the present utility model second
The goalpost formula roller bearing of exemplary embodiment as a result of taper roller 40 form, so end-play change caused by
40 too tight or too loose phenomenon of taper roller can be to be eased, so as to reduce in the axial direction because changed play causes goalpost
The possibility of formula roller bearing premature deterioration, further increase the life-span of goalpost formula roller bearing.Taper roller 40 can be according to biography
The mounting means of the taper roller of system is arranged on the space formed by the circle of first lap 1 and the 3rd 6 and enclosed by the second circle 2 and the 3rd
In 6 spaces formed.As shown in figure 4, it can be enclosed in first lap 1 and second formed with recess on 2, for accommodating taper roller
40.But the utility model not limited to this, recess also may be formed on the 3rd circle 6, for accommodating taper roller 40.
As shown in figs. 1 and 4, according to the cylindrical roller 4 of goalpost formula roller bearing of the present utility model or taper roller 40 with
And the profile of the circle 6 of roller profile and first lap 1, second circle 2 and the 3rd of the radial bulbous roller 3 of 4 points of contacts can basis
Actual demand carries out corresponding correction of the flank shape.Cylindrical roller 4 or taper roller 40 and the radial bulbous roller 3 of 4 points of contacts are using non-tight
The spheric profile in cylindrical or non-critical meaning in lattice meaning.For example, the first lap 1 of cylindrical roller 3 and cylindrical roller 3,
The section of second circle 2 and the 3rd circle 6 can use the arc-shaped profile of near linear, the first lap 1, second of radial bulbous roller 3
The section of the circle 6 of circle 2 and the 3rd can use the profiles such as shape, parabola or the ellipse of approximate circle.
Goalpost formula roller bearing of the present utility model can be used for wind power generating set, and the wind power generating set includes rotation
Part and stationary parts, rotary part and stationary parts are rotatably attached each other by the goalpost formula roller bearing.Rotation
Part can be such as wheel hub, main shaft, generator amature.Stationary parts is such as can be generator unit stator.
According to goalpost formula roller bearing of the present utility model so that goalpost formula roller bearing is with stronger axial direction, footpath
On the premise of, tilting moment bearing capacity, the requirement to bearing clearance is reduced, bearing is reduced and tension, excessively pine or partially occurs
The possibility of load, so as to ensure the design bearing life-span, reduce cost.
Sensitiveness of the bearing roller to changed play can be reduced according to goalpost formula roller bearing of the present utility model, improved
Bearing life.
Although exemplary embodiment of the present utility model is described in detail above, those skilled in the art should manage
Solution, in the case where not departing from principle of the present utility model and spirit, various modifications can be made to embodiment of the present utility model
And modification.It is understood that in the opinion of those skilled in the art, these modifications and variations will fall into claim and be limited
The scope of the utility model in.
Claims (10)
1. a kind of goalpost formula roller bearing, it is characterised in that the goalpost formula roller bearing includes：
First lap (1) and second encloses (2), and one in the outer ring and inner ring of the goalpost formula roller bearing that cooperate with the other to form
It is individual；
3rd circle (6), forms another in the outer ring and inner ring of the goalpost formula roller bearing, with the first lap (1) and
Second circle (2) coordinates, to form receiving space；
Two row axial direction rollers (4,40), be respectively received in by the first lap (1) and the 3rd circle (6) space that is formed and
In the space formed by the described second circle (2) and the 3rd circle (6)；
One row's radial bulbous roller (3), it is contained in by the first lap (1) and second circle (2) and the described 3rd circle (6) shape
Into space in,
Wherein, the first lap (1) is formed with the first recess (10), and the second circle (2) is formed with the second recess (20), and the described 3rd
(6) are enclosed formed with the 3rd recess (30), first recess (10), second recess (20) and the 3rd recess (30) one
Act the space for being formed and being used for accommodating the row radial bulbous roller (3).
2. goalpost formula roller bearing according to claim 1, it is characterised in that it is described 3rd circle (6) a part between
Between the two rows axial direction roller (4,40).
3. goalpost formula roller bearing according to claim 2, it is characterised in that the 3rd circle (6) is also formed with being used for
Accommodate the 4th recess (60) of the two rows axial direction roller (4,40).
4. the goalpost formula roller bearing according to claim any one of 1-3, it is characterised in that the goalpost formula roller bearing
Also include the dynamic sealing portion (5) between the first lap (1) and second circle (2) and the 3rd circle (6).
5. goalpost formula roller bearing according to claim 1, it is characterised in that the two rows axial direction roller (4,40) is circle
Post roller.
6. goalpost formula roller bearing according to claim 1, it is characterised in that the two rows axial direction roller (4,40) is circle
Bore roller.
7. goalpost formula roller bearing according to claim 1, it is characterised in that on the 3rd recess (30) formed with
Groove.
8. a kind of wind power generating set, the wind power generating set includes at least one rotary part and at least one stationary part
Part, it is characterised in that at least one rotary part and at least one stationary parts in such as claim 1-7 by appointing
Goalpost formula roller bearing described in one is rotatably attached each other.
9. wind power generating set according to claim 8, it is characterised in that at least one rotary part includes wheel hub
And/or main shaft and/or generator amature.
10. wind power generating set according to claim 8, it is characterised in that at least one stationary parts includes hair
Motor stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721000855.XU CN207033994U (en) | 2017-08-10 | 2017-08-10 | Goalpost formula roller bearing and there is its wind power generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721000855.XU CN207033994U (en) | 2017-08-10 | 2017-08-10 | Goalpost formula roller bearing and there is its wind power generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207033994U true CN207033994U (en) | 2018-02-23 |
Family
ID=61486710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721000855.XU Active CN207033994U (en) | 2017-08-10 | 2017-08-10 | Goalpost formula roller bearing and there is its wind power generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207033994U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135576A (en) * | 2021-12-13 | 2022-03-04 | 中国铁建重工集团股份有限公司 | Main bearing of heading machine and machining method of main bearing outer ring assembly |
| CN114483773A (en) * | 2022-01-25 | 2022-05-13 | 中国铁建重工集团股份有限公司 | Three-row bearing with changed radial raceway structure |
-
2017
- 2017-08-10 CN CN201721000855.XU patent/CN207033994U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135576A (en) * | 2021-12-13 | 2022-03-04 | 中国铁建重工集团股份有限公司 | Main bearing of heading machine and machining method of main bearing outer ring assembly |
| CN114135576B (en) * | 2021-12-13 | 2023-10-31 | 中国铁建重工集团股份有限公司 | Main bearing of heading machine and processing method of main bearing outer ring assembly |
| CN114483773A (en) * | 2022-01-25 | 2022-05-13 | 中国铁建重工集团股份有限公司 | Three-row bearing with changed radial raceway structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee after: Jinfeng Technology Co.,Ltd. Address before: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee before: XINJIANG GOLDWIND SCIENCE & TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |