CN103352919B - Solid cage and reinforced solid tapered roller bearing - Google Patents
Solid cage and reinforced solid tapered roller bearing Download PDFInfo
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- CN103352919B CN103352919B CN201310273063.XA CN201310273063A CN103352919B CN 103352919 B CN103352919 B CN 103352919B CN 201310273063 A CN201310273063 A CN 201310273063A CN 103352919 B CN103352919 B CN 103352919B
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- roller
- tapered roller
- solid cage
- solid
- inner ring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The invention provides a solid cage and a reinforced solid tapered roller bearing. The bearing comprises an inner ring, an outer ring, a tapered roller and a solid cage, wherein a plurality of roller mounting holes are milled by a numerical control milling machine along the circumference of the solid cage, the mounting holes are in the shape of a radial straight hole having an angle same as a contact angle of the roller, solid parts of the solid cage comprises two side rings and a plurality of lintels between the rings, the side surface of each lintel is respectively provided with two symmetrical lock points, each lock point is a square neck formed by two square bumps, an arc surface cooperating with the roller is milled inwardly in the square neck, the tapered roller guides rotation of the solid cage in virtue of the lock points on the solid cage, the external surface of the inner ring is provided with a U-shaped neck cooperating with the tapered roller, and the tapered roller is mounted through an outer mounting hole in the solid cage and is assembled with the inner ring to form an inner ring assembly. The bearing provided by the invention has the advantages great bearing capability, a long service life, smooth operation, low friction, good lubrication performance, good vibration resistance, etc.
Description
Technical field
The present invention relates to technical field of bearings, relate generally to a kind of structural type of enhanced type entity tapered roller bearing.
Background technique
At present, tapered roller bearing, as shown in Figure 1: it is comprised of outer ring 11, inner ring 12, roller 13, retainer 14; Raceway and the roller of Internal and external cycle are taper, the line stretcher of all conical surfaces merge on bearing axis certain a bit, retainer adopts stamping steel plate structure, have lightweight, can bear the advantages such as bidirectional load.But the shortcoming such as owing to being subject to the impact of structural design, machining accuracy and bearing assemble technique, this product ubiquity bearing capacity is low, the life-span is short, noise is large during high speed, greasy property is poor.
Summary of the invention
The object of this invention is to provide a kind of solid cage and use the enhanced type entity tapered roller bearing of this retainer, this bearing has the advantages such as bearing capacity is high, long service life, smooth running, low friction, greasy property is good, resistance to shock is good.
Object of the present invention can adopt following technological scheme to realize: a kind of solid cage, it is characterized in that, at described solid cage, circumferentially by numerical control milling machine, mill out some roller mounting holes, roller mounting hole is shaped as the radially straight hole identical with roller wrapping angle angle, and roller mounting hole outside packs portion into for roller; Solid cage entity portion is the some lintels between two side rings and ring and ring, the side of described lintel is symmetrical respectively arranges two lock points, each lock point is the square draw-in groove being formed by two square protrusion, and described square draw-in groove inwardly mills out an arc shaped surface coordinating with roller.
Further, the Si Ge corner of described roller mounting hole is provided with circular arc chamfering.
A kind of enhanced type entity tapered roller bearing, comprise inner ring, outer ring, tapered roller and solid cage, it is characterized in that, at described solid cage, circumferentially by numerical control milling machine, mill out some roller mounting holes, roller mounting hole is shaped as the radially straight hole identical with roller wrapping angle angle, and roller mounting hole outside packs portion into for roller; Solid cage entity portion is the some lintels between two side rings and ring and ring, the side of described lintel is symmetrical respectively arranges two lock points, each lock point is the square draw-in groove being formed by two square protrusion, and described square draw-in groove inwardly mills out an arc shaped surface coordinating with roller; Tapered roller relies on the lock point on solid cage to guide retainer rotation;
Described inner ring outer surface is provided with the U-shaped draw-in groove coordinating with tapered roller, and tapered roller packs roller mounting hole into by solid cage outside, and is combined into inner ring assembly with inner ring.
Further, described tapered roller both sides end face all adopts protruding Spherical Surface S R design, in described U-shaped draw-in groove and square draw-in groove, designs for concave spherical surface with the end face of tapered roller cooperation place.
Further, the Si Ge corner of described roller mounting hole is provided with circular arc chamfering.
By structure above, can be found out, the retainer of the present invention's design adopts machining one-body molded, and roller mounting hole is shaped as the radially straight hole identical with roller wrapping angle angle, has reduced mach technology difficulty on the one hand, has improved the precision of processing; On the other hand, make lubricant grease can more successfully enter bearing inside, the greasy property of bearing is significantly improved.The design optimization of the protruding Spherical Surface S R of roller both sides end face the contact condition of roller and retainer, significantly reduced the contact stress of rib, and formed and can bear the more lubricant film of high loading, under bearing normal operation, the wearing and tearing and the fatigue that between retainer or inner ring and roller end face, due to contact slide, cause have been avoided.Solid cage is compared with the board-like retainer of stamped steel, and retainer intensity has obtained large increase, can suitably increase roller diameter or quantity, thereby improves the load bearing capacity of bearing.Roller mounting hole is that segment straight line contacts with the rolling surface of roller, coordinates reasonably lock point position to distribute, the running that makes bearing more steadily, more flexible.In sum, the present invention has the advantages such as bearing capacity is high, long service life, smooth running, low friction, greasy property is good, resistance to shock is good.
Accompanying drawing explanation
The tapered roller bearing structural representation that accompanying drawing 1 is standard design.
Accompanying drawing 2 is structural representation of the present invention.
Accompanying drawing 3 is the protruding Spherical Surface S R design diagram of roller end face of the present invention.
Accompanying drawing 4 is solid cage stereogram;
Accompanying drawing 5 is solid cage whole-cutaway view;
Accompanying drawing 6 is the A place partial enlarged drawing in accompanying drawing 41.
In figure: 1 outer ring, 2 inner rings, 3 tapered rollers, 4 solid cages, 41 roller mounting holes, 42 stress relief chamferings, 43 lock points, 44 square protrusion, 45 arc shaped surfaces.
Embodiment
By reference to the accompanying drawings, specific embodiments of the invention are described.
As shown in Figure 2: its part of bearing of the present invention comprises outer ring 1, inner ring 2, tapered roller 3, the large part of solid cage 4 four.Inner ring outer surface is provided with the U-shaped draw-in groove coordinating with tapered roller, and tapered roller packs roller mounting hole into by solid cage outside, and is combined into inner ring assembly with inner ring.
As shown in Figure 3: tapered roller 3 both sides end faces be protruding Spherical Surface S R design (SR mark be spheroid, the radius that represents ball), in described U-shaped draw-in groove and square draw-in groove, be concave spherical surface SR design with the end face of tapered roller cooperation place, optimized the contact condition of roller and inner ring and retainer, significantly reduced contact stress, and formed and can bear the more lubricant film of high loading, under bearing normal operation, the wearing and tearing and the fatigue that between retainer or inner ring and roller end face, due to contact slide, cause have been avoided.
The shape of solid cage 4 is as shown in accompanying drawing 4 to 6: roller mounting hole 41 is shaped as the radially straight hole identical with tapered roller wrapping angle angle, form square hole shape, reduced mach technology difficulty, can directly process and obtain by numerical control milling machine, improved the precision of processing, and make lubricant grease can more successfully enter bearing inside, the greasy property of bearing is significantly improved.Solid cage entity portion comprises the some lintels between two side rings and ring and ring, the side of described lintel respectively two locks that arrange of symmetry puts 43, each lock point is the square draw-in groove being formed by two square protrusion 44, described square draw-in groove inwardly mills out an arc shaped surface coordinating with roller 45, roller mounting hole is that segment straight line contacts with the rolling surface of roller, there is very outstanding locking and rolling fiting effect, coordinate reasonably lock point position to distribute, the running that makes bearing more steadily, more flexible.
The Si Ge corner of roller mounting hole is provided with circular-arc stress relief chamfering 42, is a kind of technique chamfering, improves whole performance.
Claims (1)
1. an enhanced type entity tapered roller bearing, comprise inner ring, outer ring, tapered roller and solid cage, it is characterized in that, described solid cage adopts machining one-body molded, at described solid cage, circumferentially by numerical control milling machine, mill out some roller mounting holes, roller mounting hole is shaped as the radially straight hole identical with roller wrapping angle angle, and described roller mounting hole is the square hole shrinking gradually from outside to inside, and roller mounting hole outside packs portion into for roller; Solid cage entity portion is the some lintels between two side rings and ring and ring, the side of described lintel is symmetrical respectively arranges two lock points, each lock point is the square draw-in groove being formed by two square protrusion, described square draw-in groove inwardly mills out an arc shaped surface coordinating with roller, and roller mounting hole is that segment straight line contacts with the rolling surface of roller; Tapered roller relies on the lock point on solid cage to guide retainer rotation; Described inner ring outer surface is provided with the U-shaped draw-in groove coordinating with tapered roller, described tapered roller is packed into by mounting hole outside solid cage, and be combined into inner ring assembly with inner ring, described tapered roller both sides end face all adopts protruding sphere design, design for concave spherical surface with the end face of tapered roller cooperation place in described U-shaped draw-in groove and square draw-in groove, the Si Ge corner of described roller mounting hole is provided with circular-arc stress relief chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310273063.XA CN103352919B (en) | 2013-07-02 | 2013-07-02 | Solid cage and reinforced solid tapered roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310273063.XA CN103352919B (en) | 2013-07-02 | 2013-07-02 | Solid cage and reinforced solid tapered roller bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103352919A CN103352919A (en) | 2013-10-16 |
| CN103352919B true CN103352919B (en) | 2014-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310273063.XA Active CN103352919B (en) | 2013-07-02 | 2013-07-02 | Solid cage and reinforced solid tapered roller bearing |
Country Status (1)
| Country | Link |
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| CN (1) | CN103352919B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704378A (en) * | 2016-12-23 | 2017-05-24 | 瓦房店轴承集团有限责任公司 | Novel spherical roller bearing |
| CN112443581A (en) * | 2020-12-04 | 2021-03-05 | 洛阳新强联回转支承股份有限公司 | High-precision low-friction super-huge type bearing solid retainer and processing method thereof |
| CN113433298A (en) * | 2021-05-28 | 2021-09-24 | 浙江兆丰机电股份有限公司 | Bearing heat flow characteristic test device for drive axle and test method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5816713A (en) * | 1996-09-03 | 1998-10-06 | The Torrington Company | Bearing cage with T-shaped pitoling pads |
| CN101115933A (en) * | 2005-02-11 | 2008-01-30 | S.N.R.鲁尔门斯公司 | Conical roller bearing comprising a filter cage |
| CN201802765U (en) * | 2010-09-09 | 2011-04-20 | 郑广辉 | Tapered roller bearing and retainer thereof |
| 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 |
| CN203395023U (en) * | 2013-07-02 | 2014-01-15 | 山东凯美瑞轴承科技有限公司 | Solid retainer and reinforced solid tapered roller bearing |
-
2013
- 2013-07-02 CN CN201310273063.XA patent/CN103352919B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5816713A (en) * | 1996-09-03 | 1998-10-06 | The Torrington Company | Bearing cage with T-shaped pitoling pads |
| CN101115933A (en) * | 2005-02-11 | 2008-01-30 | S.N.R.鲁尔门斯公司 | Conical roller bearing comprising a filter cage |
| CN201802765U (en) * | 2010-09-09 | 2011-04-20 | 郑广辉 | Tapered roller bearing and retainer thereof |
| 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 |
| CN203395023U (en) * | 2013-07-02 | 2014-01-15 | 山东凯美瑞轴承科技有限公司 | Solid retainer and reinforced solid tapered roller bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103352919A (en) | 2013-10-16 |
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