CN103410853A - Special bearing for speed reducer of vertical cement mill - Google Patents
Special bearing for speed reducer of vertical cement mill Download PDFInfo
- Publication number
- CN103410853A CN103410853A CN2013103161049A CN201310316104A CN103410853A CN 103410853 A CN103410853 A CN 103410853A CN 2013103161049 A CN2013103161049 A CN 2013103161049A CN 201310316104 A CN201310316104 A CN 201310316104A CN 103410853 A CN103410853 A CN 103410853A
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- Prior art keywords
- retainer
- half inner
- bearing
- inner ring
- flange
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
- F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
- F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
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- Rolling Contact Bearings (AREA)
Abstract
A special bearing for a speed reducer of a vertical cement mill is formed by assembling an outer ring, an inner ring, a first retainer, a second retainer, a first row of rolling bodies and a second row of rolling bodies and is a back-to-back double-row tapered roller bearing. The bearing is characterized in that (1) the inner ring is composed of a first half inner ring and a second half inner ring; an inner spacer ring is arranged between the first half inner ring and the second half inner ring; each rolling body is a tapered roller; (2) the guide clearance between the large flange and the small flange of the first half inner ring is consistent with the inner diameter guide clearance of the first retainer; the large flange and the small flange of the first half inner ring are used for guiding the first retainer; the guide clearance between the large flange and the small flange of the second half inner ring is consistent with the inside diameter guide clearance of the second retainer; the large flange and the small flange of the second half inner ring are used for guiding the second retainer; a plurality of first lubrication grooves are equidistantly formed in the large end of the first retainer; a plurality of second lubrication grooves are equidistantly formed in the small end of the first retainer. The bearing has the advantages that the stationarity at high rotating speed is high, the lubricity is high, and the service life is long.
Description
Technical field
The present invention relates to the bearing on a kind of super large type cement roller mill speed reducer high speed input end first grade axis, the world-renowned bearing of certain of former whole employing imports manufacturing company product, the special bearings such as HM265049/HM265010CD/P59 of research and development, substituted import, filled up the blank of bearing industry.
Background technique
This bearing is used for 6.4 meters super large type cement roller mill speed reducer high speed input end first grade axiss, former certain world-renowned bearing manufacturing company's product (only having the said firm to produce) that is import.The HM265049/HM265010CD/P59 bearing size is φ 368.249X, and φ 523.875X214.312 belongs to back-to-back double-row conical bearing made in Great Britain, and dynamic load rating is Cr=2530KN, and basic static capacity (BSC) rating is Cor=5430KN, weight 128Kg.
Because of both sides on high speed input end first grade axis, a set of HM265049/HM265010CD/P59 bearing and H859049/H859010/P59/DF bearing are installed respectively, are needed to solve following problem:
Bearing mounting structure as shown in Figure 1.
1. the bearing rotating speed is the ultrahigh rotating speed of 980 rev/mins.
2. speed reducer vibration when work is larger.
3. under the good lubrication system of existing equipment, improve bearing self-lubrication performance, reduce bearing temperature rise, improve the bearing speed capability.
4. two cover bearing play should be consistent, if play and the internal diameter size phase mutual deviation of two cover bearings are large, easily causes installation rear bearing play phase mutual deviation excessive, and unbalance stress, lost efficacy one of them product in advance.
5. the rear bearing play is installed should be as far as possible little, and lower vibration is excessive at a high speed otherwise easily cause bearing, and speed capability reduces problem.
6. solve bearing rotating speed within 10 seconds and be increased sharply 980 rev/mins by 0 rev/min, avoid bearing the too high situation of scratch, locking or temperature rise to occur.
Summary of the invention
Purpose of the present invention, be to provide a kind of cement vertical mill speed reducer special bearing, and this bearing is applicable to super large type cement roller mill speed reducer use, can be at held stationary under High Rotation Speed, and Safety performance is high, long service life.
The technological scheme adopted is:
A kind of cement vertical mill speed reducer special bearing, be assembled into by outer ring, inner ring, the first retainer, the second retainer, first row rolling element and secondary series rolling element, is a kind of back-to-back double-row conical bearing, it is characterized in that:
1. inner ring is comprised of the first half inner rings and the second half inner rings, is provided with cone spacer between the first half inner rings and the second half inner rings, and rolling element is tapered roller.
2. the large-flange of the first half inner rings is consistent with the internal diameter guide clearance of the first retainer with little rib, and large-flange and little lip-guided first retainer of the first half inner rings.
The large-flange of the second half inner rings is consistent with the internal diameter guide clearance of the second retainer with little rib, and large-flange and little lip-guided second retainer of the second half inner rings; Can effectively guarantee the stationarity of bearing under high rotating speed.
Equidistantly on the large end of the first retainer offer a plurality of the first lubrication grooves, equidistantly on the small end of the first retainer offer a plurality of the second lubrication grooves.The second retainer is structurally identical with the first retainer.Offer lubrication groove and be conducive to speed reducer and under high rotating speed, make each part of bearing lubricated fully, reduce bearing temperature rise.
The pocket pore area lock point of the first retainer, the second retainer, guaranteed bearing assemble and operational safety, avoids retainer cutter seal lock roller mode to be prone to roller and interfere retainer or retainer to fall the piece phenomenon.
The two ends, pocket hole of the first retainer, the second retainer offer respectively oil groove, have reduced the friction of roller and retainer, are conducive to trapped fuel and lubricated, have improved the high speed capability of bearing.
Advantage of the present invention:
The present invention is applicable to the super large type cement roller mill speed reducer and uses, and this bearing stationary performance under high rotating speed is high, and greasy property is good, long service life.
The accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the retainer structural representation.
Fig. 3 is the D-D view of Fig. 2.
Fig. 4 is that the B of Fig. 3 is to sectional view.
Embodiment
A kind of cement vertical mill speed reducer special bearing, be assembled into by outer ring 1, inner ring 2, the first retainer 3, the second retainer 4, first row rolling element 5 and secondary series rolling element 6, is a kind of back-to-back double-row conical bearing, it is characterized in that:
1. inner ring 2 is comprised of the first half inner rings 7 and the second half inner rings 8, is provided with cone spacer 9 between the first half inner rings 7 and the second half inner rings 8, and rolling element is tapered roller.
2. the large-flange 11 of the first half inner rings 7 is consistent with the internal diameter guide clearance of the first retainer with little rib 10, and large-flange 11 and little rib 10 guiding first retainers of the first half inner rings 7.
The large-flange 12 of the second half inner rings 8 is consistent with the internal diameter guide clearance of the second retainer with little rib 13, and large-flange 12 and little rib 13 guiding second retainers of the second half inner rings 8.Can effectively guarantee the stationarity of bearing under high rotating speed.
Equidistantly on the equidistant small end 16 that offers a plurality of the first lubrication groove 15, the first retainers 3 on the large end 14 of the first retainer 3 offer a plurality of the second lubrication grooves 18.The second retainer is structurally identical with the first retainer.Offer lubrication groove and be conducive to speed reducer and under high rotating speed, make each part of bearing lubricated fully, reduce bearing temperature rise.
The pocket pore area lock point 17 of the first retainer 3, the second retainer 4, guaranteed bearing assemble and operational safety, avoids retainer cutter seal lock roller mode to be prone to roller and interfere retainer or retainer to fall the piece phenomenon.
The two ends, pocket hole of the first retainer 3, the second retainer 4 offer respectively oil groove, have reduced the friction of roller and retainer, are conducive to trapped fuel and lubricated, have improved the high speed capability of bearing.
Claims (1)
1. cement vertical mill speed reducer special bearing, by outer ring (1), inner ring (2), the first retainer (3), the second retainer (4), first row rolling element (5) and secondary series rolling element (6), be assembled into, be a kind of back-to-back double-row conical bearing, it is characterized in that:
1. inner ring (2) is comprised of the first half inner rings (7) and the second half inner rings (8), is provided with cone spacer (9) between the first half inner rings (7) and the second half inner rings (8), and rolling element is tapered roller;
2. the large-flange (11) of the first half inner rings (7) is consistent with the internal diameter guide clearance of the first retainer with little rib (10), and large-flange (11) and little rib (10) guiding first retainer of the first half inner rings (7);
The large-flange (12) of the second half inner rings (8) is consistent with the internal diameter guide clearance of the second retainer with little rib (13), and large-flange (12) and little rib (13) guiding second retainer of the second half inner rings (8);
Upper equidistant a plurality of the first lubrication grooves (15) that offer of the large end (14) of the first retainer (3), upper equidistant a plurality of the second lubrication grooves (16) that offer of the small end (16) of the first retainer (3); The second retainer is structurally identical with the first retainer;
The pocket pore area lock point (17) of the first retainer (3), the second retainer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103161049A CN103410853A (en) | 2013-07-26 | 2013-07-26 | Special bearing for speed reducer of vertical cement mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103161049A CN103410853A (en) | 2013-07-26 | 2013-07-26 | Special bearing for speed reducer of vertical cement mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103410853A true CN103410853A (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103161049A Pending CN103410853A (en) | 2013-07-26 | 2013-07-26 | Special bearing for speed reducer of vertical cement mill |
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| Country | Link |
|---|---|
| CN (1) | CN103410853A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369047A (en) * | 2016-12-09 | 2017-02-01 | 瓦房店轴承集团有限责任公司 | Conical roller bearing of novel structure copper retainer |
| FR3040749A1 (en) * | 2015-09-09 | 2017-03-10 | Ntn-Snr Roulements | BEARING SYSTEM WITH AT LEAST ONE CAGE |
| CN107939841A (en) * | 2017-12-26 | 2018-04-20 | 瓦房店轴承集团有限责任公司 | Low torque lacks oil lubrication taper roll bearing |
| CN108150530A (en) * | 2017-12-28 | 2018-06-12 | 哈尔滨轴承集团公司 | Biological particles machine bearing |
| WO2023037967A1 (en) * | 2021-09-10 | 2023-03-16 | Ntn株式会社 | Tapered roller bearing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2222261Y (en) * | 1995-04-07 | 1996-03-13 | 瓦房店第一轧机轴承厂 | Conical non-standard bearing |
| JP2001173664A (en) * | 1999-12-15 | 2001-06-26 | Nsk Ltd | Conical roller bearing |
| JP2006308046A (en) * | 2005-05-02 | 2006-11-09 | Ntn Corp | Tapered roller bearing and its roller set |
| CN201953810U (en) * | 2010-11-29 | 2011-08-31 | 瓦房店福斯特轴承科技开发有限公司 | Support pillar retainer-based double-row tapered roller bearing |
| CN201973105U (en) * | 2011-04-08 | 2011-09-14 | 常州克劳诺斯特种轴承制造有限公司 | Integral bearing retainer |
| CN203463492U (en) * | 2013-07-26 | 2014-03-05 | 大连冶金轴承股份有限公司 | Special bearing for cement vertical mill reducer |
-
2013
- 2013-07-26 CN CN2013103161049A patent/CN103410853A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2222261Y (en) * | 1995-04-07 | 1996-03-13 | 瓦房店第一轧机轴承厂 | Conical non-standard bearing |
| JP2001173664A (en) * | 1999-12-15 | 2001-06-26 | Nsk Ltd | Conical roller bearing |
| JP2006308046A (en) * | 2005-05-02 | 2006-11-09 | Ntn Corp | Tapered roller bearing and its roller set |
| CN201953810U (en) * | 2010-11-29 | 2011-08-31 | 瓦房店福斯特轴承科技开发有限公司 | Support pillar retainer-based double-row tapered roller bearing |
| CN201973105U (en) * | 2011-04-08 | 2011-09-14 | 常州克劳诺斯特种轴承制造有限公司 | Integral bearing retainer |
| CN203463492U (en) * | 2013-07-26 | 2014-03-05 | 大连冶金轴承股份有限公司 | Special bearing for cement vertical mill reducer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3040749A1 (en) * | 2015-09-09 | 2017-03-10 | Ntn-Snr Roulements | BEARING SYSTEM WITH AT LEAST ONE CAGE |
| CN106369047A (en) * | 2016-12-09 | 2017-02-01 | 瓦房店轴承集团有限责任公司 | Conical roller bearing of novel structure copper retainer |
| CN107939841A (en) * | 2017-12-26 | 2018-04-20 | 瓦房店轴承集团有限责任公司 | Low torque lacks oil lubrication taper roll bearing |
| CN108150530A (en) * | 2017-12-28 | 2018-06-12 | 哈尔滨轴承集团公司 | Biological particles machine bearing |
| WO2023037967A1 (en) * | 2021-09-10 | 2023-03-16 | Ntn株式会社 | Tapered roller bearing |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131127 |