CN101769324A - Four-row tapered roller bearing used for non-closed type rolling mills - Google Patents
Four-row tapered roller bearing used for non-closed type rolling mills Download PDFInfo
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- CN101769324A CN101769324A CN200810230257A CN200810230257A CN101769324A CN 101769324 A CN101769324 A CN 101769324A CN 200810230257 A CN200810230257 A CN 200810230257A CN 200810230257 A CN200810230257 A CN 200810230257A CN 101769324 A CN101769324 A CN 101769324A
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- outer ring
- ring
- raceway
- double
- retainer
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Abstract
The invention discloses a four-row tapered roller bearing used for non-closed type rolling mills, comprising an outer ring (1), an outer space ring (2), a double-raceway outer ring (3), a double-raceway inner ring (4), an inner space ring (5), retainers (6) and rollers (7). The outer ring (1) is circular. The both sides of the outer ring (1) are rounded off and the both sides of the tapered holes of the outer ring (1) are rounded off. The double-raceway outer ring (3) is circular. The trapezoidal section holes of the double-raceway outer ring (2) are bilaterally symmetric and the both sides of the trapezoidal holes are rounded off. The retainers (6) are in the shape of circular taper ring. Circular rings are arranged on the small-aperture parts of the circular taper rings of the retainers (6) and the both sides of the big-aperture parts of the circular taper rings of the retainers (6) are chamfered. The trapezoidal holes for holding the rollers (7) are uniformly distributed on the retainers (6). The oil filler holes are characterized by improving the lubrication action and greatly prolonging the service life of the bearing.
Description
Technical field
The present invention relates to a kind of four-row tapered roller bearing used for non-closed type rolling mills, more particularly relate to the tapered roller bearing that uses on a kind of milling train, belong to the double-row conical bearing technical field.
Background technique
The four-row tapered roller bearing structure is made up of inner ring, outer ring, middle spacer ring, tapered roller and retainer, double-row conical bearing uses on the milling train of each steel rolling mill, bearing working in impact, high temperature, at a high speed, heavy duty, insufficient lubrication, high pressure water wash away etc. under the bad working environments condition.The design of bearing housing end has Sealing, mainly is to prevent that extraneous foreign matter from entering in the bearing, as impurity, cooling water, iron scale etc.When firm use Xinmi City sealing, sealing effect is good, but after using a period of time, the sealing effect variation, this moment as untimely replacing Sealing, then sealing effect is very poor, add reasons such as the frequent influence of bearing mounting or dismounting sealing, foreign matters such as the iron scale that produces in the operation of rolling, cooling water will enter in the bearing, and lubricant grease also can leak, and will cause the non-fatigue ruption of bearing like this, reduce the working life of bearing, also can increase the workload of the frequent fatten of workman, and the use amount and the discharge amount of grease, pollution caused to environment.
Summary of the invention
The present invention provides a kind of rolling mill four-row tapered roller bearing for solving on the above technical problem, has solved extraneous foreign matter and has entered problems such as bearing and lubricant grease leak.
A kind of four-row tapered roller bearing used for non-closed type rolling mills of the present invention comprises outer ring, outer ring spacer, outer ring with double raceway, two raceway inner ring, cone spacer, retainer and roller; The outer ring is ring, the fillet of leaning now to one side, then to the other of outer ring, the cone shape hole of the outer ring fillet of leaning now to one side, then to the other; Outer ring with double raceway is ring, hole, the trapezoid cross section bilateral symmetry of outer ring with double raceway, the trapezoidal hole fillet of leaning now to one side, then to the other; Retainer is the circular cone annular; There is an annulus at the place, small aperture of retainer circular cone ring; Place, the large aperture both sides chamfering of retainer circular cone ring; Be evenly distributed with the trapezoidal hole that holds roller on the retainer.The inner ring of bearing is the branch body structure that is made of two two raceway inner rings; Two raceway inner ring external diameters have the roller raceway of two symmetries, and two arc grooves are arranged in each raceway; On two raceway inner ring endoporus one section spiral oil guide slot is arranged, there is oil guiding hole on the both sides of inwall; The equal rounding in both sides of two raceway inner ring external diameters and endoporus.The spiral oil guide slot cross section of two raceway inner ring inwalls is semicircle.Outer ring spacer external diameter both sides chamfering, there is a trapezoidal groove at outer ring spacer outer wall middle part; Outer ring spacer endoporus both sides chamfering; Be uniform-distribution with oil hole on the outer ring spacer.Pilot hole interference fit on the outer ring of bearing and the milling train matrix, an oiling path is arranged on the pilot hole on the milling train matrix, this oiling path injects lubricant oil to the arc groove at bearing outer ring outer wall middle part, and lubricant oil injects lubricant oil by the oil hole in the arc groove in bearing.
The present invention compared with prior art has the following advantages: significantly reduced friction, improved lubricating condition, improved lubricated quality, reduced frictional heating and energy loss, thereby improved bearing life greatly.
Description of drawings
Fig. 1 is the sectional structure chart of bearing of the present invention;
Fig. 2 is the sectional structure chart of bearing outer ring with double raceway of the present invention;
Fig. 3 is the sectional structure chart of bearing outer ring of the present invention;
Fig. 4 is the sectional structure chart of retainer of the present invention.
Embodiment
The present invention is by Fig. 1, Fig. 2, Fig. 3 and Fig. 4 as can be known: four-row tapered roller bearing used for non-closed type rolling mills comprises outer ring 1, outer ring spacer 2, outer ring with double raceway 3, two raceway inner ring 4, cone spacer 5, retainer 6 and roller 7; Outer ring 1 is ring, the fillet of leaning now to one side, then to the other of outer ring 1, the cone shape hole of outer ring 5 fillet of leaning now to one side, then to the other; Outer ring with double raceway 3 is ring, hole, the trapezoid cross section bilateral symmetry of outer ring with double raceway 2, the trapezoidal hole fillet of leaning now to one side, then to the other; Retainer 6 is the circular cone annular; There is an annulus at the place, small aperture of retainer 6 circular cone rings; Place, the large aperture both sides chamfering of retainer 6 circular cone rings; Be evenly distributed with the trapezoidal hole that holds roller 7 on the retainer 6.
A kind of preferred embodiment: the rolling mill four-row tapered roller bearing that with the nominal outside diameter is 393mm is an example: the external diameter of outer ring is 393mm, and the internal diameter of outer ring is 345mm, and the thickness of outer ring is 50mm; The external diameter of outer ring with double raceway is 393mm, and the internal diameter of outer ring with double raceway is 344mm, and the thickness of outer ring with double raceway is 117mm.
The above; only be the preferable embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technological scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (1)
1. a four-row tapered roller bearing used for non-closed type rolling mills is characterized in that: comprise outer ring (1), outer ring spacer (2), outer ring with double raceway (3), two raceway inner ring (4), cone spacer (5), retainer (6) and roller (7); Wherein:
Described outer ring with double raceway (3) is the V annular; Outer ring with double raceway (2) the external diameter fillet of leaning now to one side, then to the other, there is a trapezoidal groove at the external diameter middle part, is uniform-distribution with the oil hole that points to the center of circle on the external diameter; Outer ring with double raceway (2) endoporus is trapezoidal, the fillet of leaning now to one side, then to the other of endoporus;
Described outer ring (1) is the circular cone annular, the equal rounding in both sides of outer ring (1) external diameter, the cone shape hole of outer ring (5) fillet of leaning now to one side, then to the other;
Described outer ring spacer (6) external diameter both sides chamfering; Outer ring spacer (6) endoporus both sides chamfering;
Described retainer (6) is the circular cone annular; There is an annulus at the place, small aperture of retainer (6) circular cone ring; Place, the large aperture both sides chamfering of retainer (6) circular cone ring; Retainer is evenly distributed with the trapezoidal hole that holds roller (7) on (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810230257A CN101769324A (en) | 2008-12-26 | 2008-12-26 | Four-row tapered roller bearing used for non-closed type rolling mills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810230257A CN101769324A (en) | 2008-12-26 | 2008-12-26 | Four-row tapered roller bearing used for non-closed type rolling mills |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101769324A true CN101769324A (en) | 2010-07-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810230257A Pending CN101769324A (en) | 2008-12-26 | 2008-12-26 | Four-row tapered roller bearing used for non-closed type rolling mills |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101769324A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807292A (en) * | 2012-11-06 | 2014-05-21 | 优必胜(上海)精密轴承制造有限公司 | Reinforced type tapered roller bearing |
| CN107676388A (en) * | 2017-11-24 | 2018-02-09 | 北京明正维元电机技术有限公司 | A kind of double raceway circle bodies of high speed compound roller bearing |
| CN112303131A (en) * | 2020-11-03 | 2021-02-02 | 本钢板材股份有限公司 | Supporting roller bearing structure and method for preventing supporting roller bearing from being rusted and emulsifying grease |
-
2008
- 2008-12-26 CN CN200810230257A patent/CN101769324A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807292A (en) * | 2012-11-06 | 2014-05-21 | 优必胜(上海)精密轴承制造有限公司 | Reinforced type tapered roller bearing |
| CN107676388A (en) * | 2017-11-24 | 2018-02-09 | 北京明正维元电机技术有限公司 | A kind of double raceway circle bodies of high speed compound roller bearing |
| CN112303131A (en) * | 2020-11-03 | 2021-02-02 | 本钢板材股份有限公司 | Supporting roller bearing structure and method for preventing supporting roller bearing from being rusted and emulsifying grease |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100707 |