CN101769323A - Four-row tapered roller bearing provided with oil guiding slots and used for rolling mills - Google Patents
Four-row tapered roller bearing provided with oil guiding slots and used for rolling mills Download PDFInfo
- Publication number
- CN101769323A CN101769323A CN200810230256A CN200810230256A CN101769323A CN 101769323 A CN101769323 A CN 101769323A CN 200810230256 A CN200810230256 A CN 200810230256A CN 200810230256 A CN200810230256 A CN 200810230256A CN 101769323 A CN101769323 A CN 101769323A
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- raceway
- double
- oil guiding
- bearing
- ring
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Abstract
The invention discloses a four-row tapered roller bearing provided with oil guiding slots and used for rolling mills, comprising an outer ring (1), an outer space ring (2), a double-raceway outer ring (3), double-raceway inner rings (4), an inner space ring (5), retainers (6) and rollers (7), wherein the inner ring of the bearing is of fission structure formed by the two double-raceway inner rings (4). Two symmetric roller raceways are arranged on the outer diameters of the double-raceway inner rings (4). Two arc slots are arranged in each raceway. A section of spiral oil guiding slots are arranged on the inner holes of the double-raceway inner rings (4). Oil guiding holes are arranged at the two sides of the inner walls and the two sides of the outer diameters and the inner holes of the double-raceway inner rings (4) are rounded off. The sections of the spiral oil guiding slots on the inner walls of the double-raceway inner rings (4) are semi-circular. The spiral oil guiding slots 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 for rolling mill, more particularly relate to the tapered roller bearing that uses on a kind of milling train, belong to the four-row tapered roller bearing technical field with oil guide slot.
Background technique
The four-row tapered roller bearing structure is made up of outer ring, outer ring with double raceway, cone spacer, two raceway inner ring, retainer, roller and outer ring spacer, four-row tapered roller 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 four-row tapered roller bearing with oil guide slot 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 for rolling mill with oil guide slot 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 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.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.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;
Embodiment
The present invention 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 with the four-row tapered roller bearing for rolling mill of oil guide slot as shown in Figure 1; The inner ring of described bearing is the branch body structure that is made of two two raceway inner rings 4; Two raceway inner ring 4 external diameters have the roller raceway of two symmetries, and two arc grooves are arranged in each raceway; On described pair of raceway inner ring 4 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 described pair of raceway inner ring 4 external diameter and endoporus.The spiral oil guide slot cross section of described pair of raceway inner ring 4 inwalls is semicircle.
A kind of preferred embodiment: the tapered roller bearing that with the nominal outside diameter is the band oil guide slot of 311.15mm is an example: the width of outer ring is 200mm; The radius of arc groove is 12.75mm, and the degree of depth of arc groove is 1.5mm; The number of oil hole is 6, and the oil hole diameter is 8mm.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 four-row tapered roller bearing for rolling mill with oil guide slot 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:
The inner ring of described bearing is the branch body structure that is made of two two raceway inner rings (4); Described pair of raceway inner ring (4) external diameter has the roller raceway of two symmetries, and two arc grooves are arranged in each raceway; On described pair of raceway inner ring (4) 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 described pair of raceway inner ring (4) external diameter and endoporus.
2. the four-row tapered roller bearing for rolling mill of band oil guide slot according to claim 1 is characterized in that: the spiral oil guide slot cross section of described pair of raceway inner ring (4) inwall is for semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810230256A CN101769323A (en) | 2008-12-26 | 2008-12-26 | Four-row tapered roller bearing provided with oil guiding slots and used for rolling mills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810230256A CN101769323A (en) | 2008-12-26 | 2008-12-26 | Four-row tapered roller bearing provided with oil guiding slots and used for rolling mills |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101769323A true CN101769323A (en) | 2010-07-07 |
Family
ID=42502367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810230256A Pending CN101769323A (en) | 2008-12-26 | 2008-12-26 | Four-row tapered roller bearing provided with oil guiding slots and used for rolling mills |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101769323A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734327A (en) * | 2012-06-20 | 2012-10-17 | 无锡宇吉科技有限公司 | Shaft sleeve |
| CN104047959A (en) * | 2014-06-20 | 2014-09-17 | 德清恒丰机械有限公司 | Novel bearing outer ring for automobiles |
| 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 CN200810230256A patent/CN101769323A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734327A (en) * | 2012-06-20 | 2012-10-17 | 无锡宇吉科技有限公司 | Shaft sleeve |
| CN104047959A (en) * | 2014-06-20 | 2014-09-17 | 德清恒丰机械有限公司 | Novel bearing outer ring for automobiles |
| 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 |