CN104389898A - Self-aligning roller bearing of asymmetric structure - Google Patents
Self-aligning roller bearing of asymmetric structure Download PDFInfo
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- CN104389898A CN104389898A CN201410607597.6A CN201410607597A CN104389898A CN 104389898 A CN104389898 A CN 104389898A CN 201410607597 A CN201410607597 A CN 201410607597A CN 104389898 A CN104389898 A CN 104389898A
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- retainer
- roller
- size
- retainers
- roller bearing
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Abstract
The invention discloses a self-aligning roller bearing of an asymmetric structure. The self-aligning roller bearing comprises an outer ring, an inner ring, rollers and retainers, wherein the inner ring is arranged in the outer ring; a volume cavity is formed between the inner ring and the outer ring; two rows of retainers which are arranged asymmetrically, namely retainers A and retainers B, are sleeved in the volume cavity; the size of each retainer A is greater than that of each retainer B or the size of each retainer B is greater than that of each retainer A; two rows of rollers, namely rollers C and rollers D, are embedded into the retainers A and the retainers B respectively; and the sizes of the two rows of rollers correspond to those of the two rows of retainers. Through the manner, the self-aligning roller bearing can bear relatively large one-way load under the condition of the same boundary dimension, and is applicable to the working condition of the bearing at the output end of a main transmission box of a cement mixer tank body.
Description
Technical field
The present invention relates to field of bearings, particularly relate to a kind of non-symmetry structure selfaligning roller bearing.
Background technique
Conventional bearings model is biserial symmetric form selfaligning roller bearing, can bear the axial force of radial direction and both direction, and the ability that two row rollers bear thrust load is identical.
It is the same that biserial symmetric form selfaligning roller bearing often arranges the unidirectional load ability that can bear.And the operating mode of bulk cement carrier main transmission gearbox output shaft is while bear larger axial force, another side bears little axial force.Therefore, the bearing roller and the raceway that bear larger axial force one end easily occur that early fatigue peels off, and do not reach requirement projected life.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of non-symmetry structure selfaligning roller bearing, can bear larger unidirectional load having under identical appearance size condition, more adapts to the operating mode of concrete mixer can body main transmission box output terminal bearing.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: provide a kind of non-symmetry structure selfaligning roller bearing, comprise: outer ring, inner ring, roller and retainer, described inner ring is arranged in outer ring, a cavity volume is formed between inner ring and outer ring, the retainer of the asymmetric arrangement of two row is arranged with: retainer A and retainer B in described cavity volume, the size of described retainer A is greater than the size of retainer B, or the size of retainer B is greater than the size of retainer A, embed respectively in described retainer A and retainer B and two row rollers are installed: roller C and roller D, the size of this two row roller is corresponding with the size of described two row retainers.
Preferably, the external diameter of described outer ring and the inner radius of inner ring are provided with rounded corner.
Preferably, the material of described retainer A and retainer B is: PA66-GF25.
Preferably, described roller C and roller D is of a size of GCr15.
Preferably, described roller C and roller D adopts electroslag remelting process to make.
The invention has the beneficial effects as follows: the symmetrical selfaligning roller bearing of conventional biserial single roller energy bearing load is 291.6KN, and large roller end energy bearing load of the present invention is 346KN.Under concrete mixer can body main transmission box output terminal working condition, the working life of non-symmetry structure selfaligning roller bearing is the twice of conventional bearings.
Accompanying drawing explanation
Fig. 1 is the structural representation of non-symmetry structure selfaligning roller bearing one of the present invention preferred embodiment;
In accompanying drawing, the mark of each parts is as follows: 1, outer ring, and 2, inner ring, 3, retainer A, 4, retainer B, 5, roller C, 6, roller D.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
A kind of non-symmetry structure selfaligning roller bearing, comprise: outer ring 1, inner ring 2, roller and retainer, described inner ring 2 is arranged in outer ring 1, a cavity volume is formed between inner ring 2 and outer ring 1, the retainer of the asymmetric arrangement of two row is arranged with: retainer A3 and retainer B4 in described cavity volume, the size of described retainer A3 is greater than the size of retainer B4, or the size of retainer B4 is greater than the size of retainer A3, embed respectively in described retainer A3 and retainer B4 and two row rollers are installed: roller C5 and roller D6, the size of this two row roller is corresponding with the size of described two row retainers, the present invention adopts non-symmetry structure, i.e. row's large roller, one row's small roller.Large roller end mainly bears the load of cement can body, and small roller end mainly plays support and aligning effect.
The external diameter of described outer ring 1 and the inner radius of inner ring 2 are provided with rounded corner, avoid bearing seamed edge to hurt workman, improve the safety coefficient of bearing.
The material of described retainer A3 and retainer B4 is: PA66-GF25, has good linear expansion coeffcient.
Described roller C5 and roller D6 is of a size of GCr15, has higher hardness, uniform tissue, good wear resistance, high contact fatigue property.
Described roller C5 and roller D6 adopt electroslag remelting process to make, the steel ingot of clean even tissue densification can be obtained, purity is high, sulfur-bearing is low, sonims is few, surface of steel ingot is smooth, clean even compact, metallographic structure and chemical composition even.
The present invention is arranged on the output terminal of concrete mixer can body main transmission gearbox, and bearing is that inner ring rotates.Bearing inner race and axle are interference fit, bearing outer ring and gear-box bore Spielpassung.Bearing large roller end towards concrete mixer can body side, with bear can body weight produce large axial thrust load.Small roller end, towards gear-box side, only plays support corrective action.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. a non-symmetry structure selfaligning roller bearing, it is characterized in that, comprise: outer ring, inner ring, roller and retainer, described inner ring is arranged in outer ring, a cavity volume is formed between inner ring and outer ring, the retainer of the asymmetric arrangement of two row is arranged with: retainer A and retainer B in described cavity volume, the size of described retainer A is greater than the size of retainer B, or the size of retainer B is greater than the size of retainer A, embed respectively in described retainer A and retainer B and two row rollers are installed: roller C and roller D, the size of this two row roller is corresponding with the size of described two row retainers.
2. a kind of non-symmetry structure selfaligning roller bearing according to claim 1, is characterized in that, the external diameter of described outer ring and the inner radius of inner ring are provided with rounded corner.
3. a kind of non-symmetry structure selfaligning roller bearing according to claim 1, is characterized in that, the material of described retainer A and retainer B is: PA66-GF25.
4. a kind of non-symmetry structure selfaligning roller bearing according to claim 1, is characterized in that, described roller C and roller D is of a size of GCr15.
5. a kind of non-symmetry structure selfaligning roller bearing according to claim 4, is characterized in that, described roller C and roller D adopts electroslag remelting process to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410607597.6A CN104389898A (en) | 2014-11-03 | 2014-11-03 | Self-aligning roller bearing of asymmetric structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410607597.6A CN104389898A (en) | 2014-11-03 | 2014-11-03 | Self-aligning roller bearing of asymmetric structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104389898A true CN104389898A (en) | 2015-03-04 |
Family
ID=52607843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410607597.6A Pending CN104389898A (en) | 2014-11-03 | 2014-11-03 | Self-aligning roller bearing of asymmetric structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104389898A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4333695A (en) * | 1977-09-28 | 1982-06-08 | Evans Terence A | Roller bearing |
| DE102004047881A1 (en) * | 2004-10-01 | 2006-04-06 | Fag Kugelfischer Ag & Co. Ohg | Self-aligning roller bearing for use in applications where axial loading is predominantly on one side has two rows of rollers which are inclined to vertical in opposite directions, angle being greater on side with higher loading |
| CN101089412A (en) * | 2006-06-13 | 2007-12-19 | 汉森传动系统国际公司 | Bearing and method whereby such a bearing can be applied |
| CN203130795U (en) * | 2012-12-28 | 2013-08-14 | 瓦房店轴承集团有限责任公司 | Cylindrical and angular-contact combined bearing with large aligning angle |
| CN203560296U (en) * | 2013-10-22 | 2014-04-23 | 浙江省新昌新轴实业有限公司 | Closed type automotive hub bearing unit |
| CN103790959A (en) * | 2012-10-31 | 2014-05-14 | 优必胜(上海)精密轴承制造有限公司 | Self-aligning roller bearing |
| CN204239462U (en) * | 2014-11-03 | 2015-04-01 | 江苏帝达贝轴承有限公司 | Non-symmetry structure selfaligning roller bearing |
-
2014
- 2014-11-03 CN CN201410607597.6A patent/CN104389898A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4333695A (en) * | 1977-09-28 | 1982-06-08 | Evans Terence A | Roller bearing |
| DE102004047881A1 (en) * | 2004-10-01 | 2006-04-06 | Fag Kugelfischer Ag & Co. Ohg | Self-aligning roller bearing for use in applications where axial loading is predominantly on one side has two rows of rollers which are inclined to vertical in opposite directions, angle being greater on side with higher loading |
| CN101089412A (en) * | 2006-06-13 | 2007-12-19 | 汉森传动系统国际公司 | Bearing and method whereby such a bearing can be applied |
| CN103790959A (en) * | 2012-10-31 | 2014-05-14 | 优必胜(上海)精密轴承制造有限公司 | Self-aligning roller bearing |
| CN203130795U (en) * | 2012-12-28 | 2013-08-14 | 瓦房店轴承集团有限责任公司 | Cylindrical and angular-contact combined bearing with large aligning angle |
| CN203560296U (en) * | 2013-10-22 | 2014-04-23 | 浙江省新昌新轴实业有限公司 | Closed type automotive hub bearing unit |
| CN204239462U (en) * | 2014-11-03 | 2015-04-01 | 江苏帝达贝轴承有限公司 | Non-symmetry structure selfaligning roller bearing |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150304 |