CN101586611A - Reducing tapered roller bearing for single-row matching - Google Patents
Reducing tapered roller bearing for single-row matching Download PDFInfo
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- CN101586611A CN101586611A CNA2008103016487A CN200810301648A CN101586611A CN 101586611 A CN101586611 A CN 101586611A CN A2008103016487 A CNA2008103016487 A CN A2008103016487A CN 200810301648 A CN200810301648 A CN 200810301648A CN 101586611 A CN101586611 A CN 101586611A
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- ring
- inner ring
- outer ring
- width
- tapered roller
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Abstract
The invention discloses a reducing tapered roller bearing for single-row matching, which comprises two rows of outer rings (1, 2) arranged oppositely, inner rings (3, 4) and tapered rollers (5, 6) between the inner and outer rings. An inner separation ring (9) is arranged between two rows of the inner rings. The tapered rollers (5, 6) are limited on a retainer between the inner and outer rings respectively, wherein a taper angle of the outer ring (1) on one side is larger than that of the outer ring (2) on the other side, the width of the outer ring (1) is larger than that of the outer ring (2), an inside diameter of the inner ring (3) on one side is longer than that of the inner ring (4) on the other side, and the width of the inner ring (3) is greater than the width of the inner ring (4). The double-row reducing tapered roller bearing of the invention has the advantages of reasonable design, simple structure, reliable property, high rotary speed, high bearing load and long service life.
Description
Technical field
The present invention relates to a kind of bearing, more particularly, relate to a kind of tapered roller bearing.
Background technique
The China's oil drilling-production equipment, particularly the land oil drilling and r eoovery machine has been had a certain level through years development, products such as electric drive rig, cluster well rig, desert rig, slant rig, horizontal well rig and top drive drilling machine have been developed, substantially various rig arts demands such as high-pressure injection rig have been satisfied, the workmanship of rig also arrives the early 1990s world level, and oil bit reaches international standards.This design bearing, manufacture level and world level that just requires to match with it adapts.Because the oil-well rig platform is more abominable with the operating mode of bearing, thereby the rig bearing not only requires high load, high rotating speed but also requires high feasibility and long lifetime.At present, the tapered roller bearing that uses on the China's oil drilling machine platform is double ball or four-point contact ball structure, because the bearing capacity of this bearing is low, thereby in use to its usability with certain influence is all arranged working life.
Summary of the invention
At the problems referred to above, the invention provides a kind of bear Different Diameter to or the tapered roller bearing of axial force, its purpose is intended to solve that the symmetric type double-row conical bearing bears radially or the axial force ability is fixed, be difficult for adjusting, influence problem such as working life.
In order to achieve the above object, the present invention has constructed a kind of single-row pairing reducing tapered roller bearing, comprises that two are listed as the tapered roller between outer ring, inner ring and the Internal and external cycle that is oppositely arranged.Two row inner rings and between be provided with cone spacer.Tapered roller is defined in respectively on the retainer between the Internal and external cycle.Wherein, the cone angle of a side outer ring is greater than the cone angle of opposite side outer ring, and the width of a side outer ring is greater than the width of opposite side outer ring; The internal diameter of one side inner ring is greater than the internal diameter of opposite side inner ring, and the width of a side inner ring is greater than the width of opposite side inner ring.
The present invention is provided with biserial outer ring, inner ring, retainer and roller; Outer ring, inner ring and roller all have cone angle, and the internal diameter size of one of them inner ring is greater than the internal diameter size of another inner ring.Because the internal diameter difference of two row inner rings, width are also different, and two outer rings are in direct contact with together, are equivalent to an outer ring, and this course of working is convenient.Two loads that inner ring bore and act on different, wherein the row that internal diameter is bigger are in order to bear the less row of main load, internal diameter in order to bear less important load (these row also play slight aligning centralizing function to a whole set of bearing), thereby the ability of the carrying of its load improves a lot, its working life also corresponding being improved.Roller pocket hole is whole rectangular cone shape hole on the retainer, direct punching press just can be fixed together roller and inner ring during assembling, so just guaranteed can in retainer, not drop out after the roller assembling, guarantee operational safety, satisfied the oil-well rig platform with bearing high speed, heavy duty, highi degree of accuracy, the requirement in high working life.
By technique scheme, that biserial reducing tapered roller bearing of the present invention has is reasonable in design, simple in structure, reliable performance, high rotating speed, high-mechanic load, the characteristics in high working life.
Description of drawings
Fig. 1 is the overall structure schematic representation of bearing of the present invention;
Fig. 2 is the structural representation of outer ring, left side among Fig. 1;
Fig. 3 is the structural representation of outer ring, right side among Fig. 1;
Fig. 4 is the structural representation of left side inner ring among Fig. 1;
Fig. 5 is the structural representation of right side inner ring among Fig. 1;
Fig. 6 is the structural representation of cone spacer among Fig. 1.
Among the figure, outer ring 1,2, inner ring 3,4, roller 5,6, retainer 7,8, cone spacer 9.
Embodiment
Shown in Fig. 1-6, tapered roller bearing of the present invention comprises outer ring 1 and 2, inner ring 3 and 4, and is provided with cone spacer 9 between tapered roller 5 and 6, two row inner rings 3 and 4.Tapered roller 5 and 6 is defined in respectively on retainer 7 and 8.Wherein, the cone angle of outer ring 1 is greater than the cone angle of outer ring, right side 2 on the left of among Fig. 1; The width of outer ring 1 is greater than the width of outer ring 2; The internal diameter of left side inner ring 3 is greater than the internal diameter of right side inner ring 4, and the width of inner ring 3 is greater than the width of inner ring 4.
Among the figure, the internal diameter of two row inner rings is all different with width, and wherein the row that internal diameter is bigger are in order to bear main load, and the less row of internal diameter bear less important load and a whole set of bearing is played a part slight aligning to be set upright.Because therefore the axial load that this bearing mainly bears is equipped with cone angle in the every row inner ring and the outer ring of design, wherein the cone angle of the row inner ring that internal diameter is big is greater than the cone angle of the little inner ring of internal diameter.Because the internal diameter difference of two row inner rings 3,4, width are also different, thereby it is also different to be mated the retainer 7,8 of use.For satisfying the requirement in high working life of the high rotating speed of bearing, retainer must have higher wear resistance, and for this reason, the rationality of retainer structural design and reliability of technology are key points of design.The present embodiment retainer selects for use the stamped steel sheet material to make, thereby efficiently solves existing retainer under the situation of running up, and the wear-resisting property of material is poor, fall the defective of copper ashes easily.Because roller pocket hole global design rectangularity taper hole on the retainer 7,8 do not drop out in retainer for guaranteeing the roller after the assembling, and revolution flexibly.The generation roller comes off in directly roller and retainer punching press just can being avoided using in when assembling, utilizes cone spacer 9 to adjust play, the use of can directly installing.
Claims (1)
1. a single-row pairing reducing tapered roller bearing is characterized in that, comprises that two are listed as the tapered roller (5,6) between outer ring (1,2), inner ring (3,4) and the Internal and external cycle that is oppositely arranged; Be provided with cone spacer (9) between described two row inner rings (3) and (4); Described tapered roller (5) and (6) are defined in respectively on the retainer between the Internal and external cycle (7) and (8); Wherein, the cone angle of a side outer ring (1) is greater than the cone angle of opposite side outer ring (2), and the width of described outer ring (1) is greater than the width of described outer ring (2); The internal diameter of one side inner ring (3) is greater than the internal diameter of opposite side inner ring (4), and the width of described inner ring (3) is greater than the width of described inner ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103016487A CN101586611A (en) | 2008-05-19 | 2008-05-19 | Reducing tapered roller bearing for single-row matching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103016487A CN101586611A (en) | 2008-05-19 | 2008-05-19 | Reducing tapered roller bearing for single-row matching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101586611A true CN101586611A (en) | 2009-11-25 |
Family
ID=41370990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008103016487A Pending CN101586611A (en) | 2008-05-19 | 2008-05-19 | Reducing tapered roller bearing for single-row matching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101586611A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807292A (en) * | 2012-11-06 | 2014-05-21 | 优必胜(上海)精密轴承制造有限公司 | Reinforced type tapered roller bearing |
-
2008
- 2008-05-19 CN CNA2008103016487A patent/CN101586611A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807292A (en) * | 2012-11-06 | 2014-05-21 | 优必胜(上海)精密轴承制造有限公司 | Reinforced type tapered 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: 20091125 |