CN101769320A - Double-row tapered roller bearing provided with middle space rings and used for rolling mills - Google Patents
Double-row tapered roller bearing provided with middle space rings and used for rolling mills Download PDFInfo
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- CN101769320A CN101769320A CN200810230219A CN200810230219A CN101769320A CN 101769320 A CN101769320 A CN 101769320A CN 200810230219 A CN200810230219 A CN 200810230219A CN 200810230219 A CN200810230219 A CN 200810230219A CN 101769320 A CN101769320 A CN 101769320A
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- rings
- ring
- middle space
- tapered roller
- double
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Abstract
The invention discloses a double-row tapered roller bearing provided with middle space rings and used for rolling mills, comprising inner rings (1), outer rings (5), the middle space rings (2), tapered rollers (3) and retainers (4), wherein each outer ring (5) comprises two symmetric outer sub-rings and the middle space rings (2). The outer sub-rings of the outer rings (5) are in the shape of circular taper ring. The two sides of the outer diameters and the inner holes of the outer sub-rings are rounded off. Rectangular grooves are arranged outside the middle space rings (2). Oil filler holes pointing at the circle centers of the middle space rings are uniformly distributed in the grooves. A pair of symmetric roller raceways is arranged in the outer diameters of the inner rings (1). Two arc grooves are arranged in each roller raceway. The two sides of the inner holes of the inner rings (1) are rounded off. The number of the oil filler holes on the middle space rings is 4. The bearing of the invention is mainly applied to the rolling mill industry. 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 milling train tapered roller bearing, 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 double-row conical 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 double-row tapered roller bearing of rolling mill for solving on the above technical problem, has solved extraneous foreign matter and has entered problems such as bearing and lubricant grease leak.
The double-row tapered roller bearing of rolling mill of spacer ring in the band of the present invention comprises inner ring, outer ring, middle spacer ring, tapered roller and retainer; The outer ring divides ring and middle spacer ring to form by the outer ring of two symmetries; The outer ring of outer ring divides ring to be the circular cone annular, and the equal rounding in external diameter both sides, the equal rounding in endoporus both sides of ring divided in the outer ring; There is a rectangular recess in the middle spacer ring outside, is evenly distributed with the oil hole in the spacer ring center of circle in the sensing in the groove; The roller raceway that a pair of symmetry is arranged in the inner ring external diameter has two arc grooves in each roller raceway; The fillet of leaning now to one side, then to the other of inner ring endoporus.Oil hole quantity on the middle spacer ring is 4.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 spacer ring among the present invention
Embodiment
The present invention includes as seen from Figure 1, Figure 2: the double-row tapered roller bearing of rolling mill of spacer ring in the band comprises inner ring 1, outer ring 5, middle spacer ring 2, tapered roller 3 and retainer 4; Outer ring 5 divides ring and middle spacer ring 2 to form by the outer ring of two symmetries; The outer ring of outer ring 5 divides ring to be the circular cone annular, and the equal rounding in external diameter both sides, the equal rounding in endoporus both sides of ring divided in the outer ring; There is a rectangular recess in middle spacer ring 2 outsides, are evenly distributed with the oil hole in the spacer ring center of circle in the sensing in the groove; The roller raceway that a pair of symmetry is arranged in inner ring 1 external diameter has two arc grooves in each roller raceway; The fillet of leaning now to one side, then to the other of inner ring 1 endoporus.Oil hole quantity on the middle spacer ring is 4.
A kind of preferred embodiment: the double-row tapered roller bearing of rolling mill that with the diameter is 1260mm is an example: the width of outer ring is 108mm; The angle of two hypotenuses of dovetail groove is 60 degree, and the upper base width of dovetail groove is 24mm, and the degree of depth of dovetail groove is 5mm; The number of oil hole is 4, and the oil hole diameter is 16mm.There have been these oil holes to help the timely input and the exchange of oiling agent, so not only reduced friction and also having improved lubricatedly simultaneously, helped reducing frictional heating and energy loss.
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 (2)
1. the double-row tapered roller bearing of rolling mill of spacer ring in the band is characterized in that: comprise inner ring (1), outer ring (5), middle spacer ring (2), tapered roller (3) and retainer (4); Wherein:
Described outer ring (5) divides ring and middle spacer ring (2) to form by the outer ring of two symmetries;
The outer ring of described outer ring (5) divides ring to be the circular cone annular, and the equal rounding in external diameter both sides, the equal rounding in endoporus both sides of ring divided in the outer ring;
There is a rectangular recess in spacer ring (2) outside in described, is evenly distributed with the oil hole in the spacer ring center of circle in the sensing in the groove;
The roller raceway that a pair of symmetry is arranged in described inner ring (1) external diameter has two arc grooves in each roller raceway; The fillet of leaning now to one side, then to the other of inner ring (1) endoporus.
2. double-row tapered roller bearing of rolling mill according to claim 1 is characterized in that: the oil hole quantity in described on the spacer ring is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810230219A CN101769320A (en) | 2008-12-26 | 2008-12-26 | Double-row tapered roller bearing provided with middle space rings and used for rolling mills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810230219A CN101769320A (en) | 2008-12-26 | 2008-12-26 | Double-row tapered roller bearing provided with middle space rings and used for rolling mills |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101769320A true CN101769320A (en) | 2010-07-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810230219A Pending CN101769320A (en) | 2008-12-26 | 2008-12-26 | Double-row tapered roller bearing provided with middle space rings and used for rolling mills |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101769320A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678742A (en) * | 2012-06-19 | 2012-09-19 | 常熟长城轴承有限公司 | Double-row angular contact bearing with flange |
| CN104061237A (en) * | 2014-05-04 | 2014-09-24 | 洛阳德润精密机床轴承有限公司 | Two-way thrust angular contact ball bearing with grease storage groove in outer ring channel |
| CN107228130A (en) * | 2016-03-24 | 2017-10-03 | 斯凯孚公司 | Spheric roller bearing |
-
2008
- 2008-12-26 CN CN200810230219A patent/CN101769320A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678742A (en) * | 2012-06-19 | 2012-09-19 | 常熟长城轴承有限公司 | Double-row angular contact bearing with flange |
| CN104061237A (en) * | 2014-05-04 | 2014-09-24 | 洛阳德润精密机床轴承有限公司 | Two-way thrust angular contact ball bearing with grease storage groove in outer ring channel |
| CN107228130A (en) * | 2016-03-24 | 2017-10-03 | 斯凯孚公司 | Spheric roller bearing |
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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 |