CN207161527U - A kind of self-aligning thrust roller bearing - Google Patents
A kind of self-aligning thrust roller bearing Download PDFInfo
- Publication number
- CN207161527U CN207161527U CN201720951446.1U CN201720951446U CN207161527U CN 207161527 U CN207161527 U CN 207161527U CN 201720951446 U CN201720951446 U CN 201720951446U CN 207161527 U CN207161527 U CN 207161527U
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- Prior art keywords
- ball
- track
- bearing
- inner ring
- retainer
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Abstract
The utility model discloses a kind of self-aligning thrust roller bearing, including the outer ring set gradually from bottom to top, retainer and inner ring, even partition is provided with multiple rollers on the retainer, the upper end of the outer ring is provided with the first ball-track, lower end on the outside of the inner ring is provided with the second ball-track, upper end on the outside of the inner ring is provided with bayonet socket step, the roller is in drum shape, and the roller is engaged with first ball-track and second ball-track, the upper end of the retainer is provided with buckle, the buckle is caught in the outside of the bayonet socket step, the retainer and the inner ring are connected in one, it is easy to install, reduce friction, improve the running accuracy of bearing.The utility model improves the load-carrying ability and transmission accuracy of bearing, smooth running, extends the service life of bearing, can effectively substitute original imported bearing, improve the accuracy class of bearing, reduce cost.
Description
【Technical field】
The technical field of bearing is the utility model is related to, more particularly to a kind of self-aligning thrust roller bearing.
【Background technology】
Self-aligning thrust roller bearing is mainly made up of outer ring, inner ring, roller and retainer, the roller surface set on outer ring
It is the sphere centered on the point consistent with bearing centre axle, and roller is spherical, therefore, it has automatic aligning work(
Energy.Self-aligning thrust roller bearing is mainly used in oil-well rig, makes iron steel machinery, hydroelectric generator, vertical type motor, ship
With propeller shaft, tower crane and extruder etc..German FAG self-aligning thrust roller bearings, its valency are depended on currently on the market
Lattice are expensive, and delivery cycle is longer, are unfavorable for the benign development of enterprise's manufacturing.And the thrust force aligning that China manufactures at present
The accuracy class of roller bearing is essentially P0 levels, and its noise is big, and run stability is poor, it is impossible to meets that the use of bad working environments will
Ask.
【Utility model content】
In view of this, it is overcome the deficiencies in the prior art, a kind of self-aligning thrust roller bearing of the utility model offer, passes through
The improvement of retainer structure, it is easy to the installation of roller, reduces friction, improves the precision of bearing；Using the roller of ball basal plane, have
Beneficial to the operation of roller guide, make bearing operation more steady, noise is small.
To achieve the above object, the technical solution of the utility model is as follows：
A kind of self-aligning thrust roller bearing, including outer ring, retainer and the inner ring set gradually from bottom to top, the guarantor
Hold even partition on frame and be provided with multiple rollers, the upper end of the outer ring is provided with the first ball-track, on the outside of the inner ring
Lower end is provided with the second ball-track, and the upper end on the outside of the inner ring is provided with bayonet socket step, and the roller is in drum shape, and institute
State roller to be engaged with first ball-track and second ball-track, the upper end of the retainer is provided with card
Button, the buckle are caught in the outside of the bayonet socket step, and the retainer and the inner ring are connected in one, the side of installing and using
Just, friction is reduced, improves the running accuracy of bearing, the lower end of the retainer is provided with circular arc reinforcement, avoids described
The deformation of retainer, further increase the precision of bearing.
Preferably, the spherical radius of first ball-track and second ball-track is 141mm, the rolling
Son uses ball basal plane, is engaged with first ball-track and the second ball-track, improves bearing capacity and running accuracy.
Further, the surface roughness of first ball-track and second ball-track is 0.125um, surface
It is bright and clean.
Further, the upper end on the inside of the inner ring and the lower end on the outside of the outer ring are provided with the circle that radius is 3mm
Arc angle, it is easily installed, avoids producing interference with mounting-fixing base.
Further, the middle part annular on the outside of the inner ring is provided with inner circle arc angle, effectively prevent the roller and is rotating
When interfere with the inner ring output, improve the precision of bearing.
Further, the quantity of the roller is 15, and bearing capacity is strong, service life length.
The beneficial effects of the utility model are：The load-carrying ability and running accuracy of bearing are improved, extends making for bearing
With the life-span, noise is small, and the precision of bearing is brought up into P5 levels, can effectively substitute original imported bearing, reduce cost.
【Brief description of the drawings】
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of outer ring in Fig. 1；
Fig. 3 is the structural representation of inner ring in Fig. 1.
In figure, 1, outer ring, 2, retainer, 3, inner ring, 4, roller, 5, bayonet socket step, 6, buckle, 7, circular arc reinforcement, 8,
First ball-track, the 9, first arc chord angle, the 10, second ball-track, 11, inner circle arc angle, the 12, second arc chord angle.
【Embodiment】
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Referring to figs. 1 to Fig. 3, a kind of self-aligning thrust roller bearing, including set gradually from bottom to top outer ring 1, retainer 2
And inner ring 3, even partition is provided with multiple rollers 4 on the retainer 2, and it is spherical that the upper end of the outer ring 1 is provided with first
Raceway 8, the lower end in the outside of inner ring 3 are provided with the second ball-track 10, and the upper end in the outside of inner ring 3 is provided with bayonet socket platform
Rank 5, the roller 4 are in drum shape, and the roller 4 and first ball-track 8 and the phase of the second ball-track 10
Coordinate, the upper end of the retainer 2 is provided with buckle 6, and the buckle 6 is caught in the outside of the bayonet socket step 5, the retainer
2 and the inner ring 3 be connected in one, it is easy to install, reduce friction, improve the running accuracy of bearing, the retainer 2
Lower end be provided with circular arc reinforcement 7, avoid the deformation of the retainer 2, further increase the precision of bearing.
The spherical radius of the ball-track 10 of first ball-track 8 and second is 141mm, and the roller 4 uses
Ball basal plane, it is engaged with the ball-track 10 of the first ball-track 8 and second, improves bearing capacity and running accuracy.
The surface roughness of the ball-track 10 of first ball-track 8 and second is 0.125um, any surface finish.
The lower end in the outside of outer ring 1 is provided with the first arc chord angle 9, and the upper end of the inner side of inner ring 3 is provided with the second circle
Arc angle 12, the radius of the arc chord angle 12 of the first arc chord angle 9 and second is 3mm, is easy to the installation of bearing, is avoided solid with installation
Reservation produces interference.
The middle part annular in the outside of the inner ring 3 is provided with inner circle arc angle 11, effectively prevent the roller 4 when rotating with
The output of inner ring 3 interference, improve the precision of bearing.
The quantity of the roller 4 is 15, and bearing capacity is strong, service life length.
As depicted in figs. 1 and 2, by taking model 29420EP5 self-aligning thrust roller bearing as an example, the external diameter of outer ring 1 is
210mm, the diameter of bore of inner ring 3 is 100mm, and after heat treatment hardness is 58-62HRC for outer ring 1 and inner ring 3.In use, keep
Frame 2, inner ring 3 and the assembly of roller 4 can rotate in one, roller 4 in the first ball-track 8；Meanwhile retainer 2,
Inner ring 3 and roller 4 can be swung in the first ball-track 8, reach the purpose of aligning.
The utility model improves the load-carrying ability and transmission accuracy of bearing, and smooth running, extend bearing uses the longevity
Life, can effectively substitute original imported bearing, improve the accuracy class of bearing, reduce cost.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (6)
1. a kind of self-aligning thrust roller bearing, including outer ring, retainer and the inner ring set gradually from bottom to top, the holding
Even partition is provided with multiple rollers on frame, it is characterised in that the upper end of the outer ring is provided with the first ball-track, described interior
The lower end in circle outside is provided with the second ball-track, and the upper end on the outside of the inner ring is provided with bayonet socket step, and the roller is in drum
Shape, and the roller is engaged with first ball-track and second ball-track, the upper end of the retainer
Buckle is provided with, the buckle is caught in the outside of the bayonet socket step, and the lower end of the retainer is provided with circular arc reinforcement.
A kind of 2. self-aligning thrust roller bearing according to claim 1, it is characterised in that first ball-track and
The spherical radius of second ball-track is 141mm.
A kind of 3. self-aligning thrust roller bearing according to claim 1 or 2, it is characterised in that first ball-track
And the surface roughness of second ball-track is 0.125um.
A kind of 4. self-aligning thrust roller bearing according to claim 1, it is characterised in that upper end on the inside of the inner ring with
And the lower end on the outside of the outer ring is provided with the arc chord angle that radius is 3mm.
5. a kind of self-aligning thrust roller bearing according to claim 1 or 4, it is characterised in that on the outside of the inner ring
Portion's annular is provided with inner circle arc angle.
6. a kind of self-aligning thrust roller bearing according to claim 1, it is characterised in that the quantity of the roller is 15
It is individual.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720951446.1U CN207161527U (en) | 2017-08-01 | 2017-08-01 | A kind of self-aligning thrust roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720951446.1U CN207161527U (en) | 2017-08-01 | 2017-08-01 | A kind of self-aligning thrust roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207161527U true CN207161527U (en) | 2018-03-30 |
Family
ID=61714773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720951446.1U Active CN207161527U (en) | 2017-08-01 | 2017-08-01 | A kind of self-aligning thrust roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207161527U (en) |
-
2017
- 2017-08-01 CN CN201720951446.1U patent/CN207161527U/en active Active
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| GR01 | Patent grant |