CN2607465Y - Double-row reducing conic rolling bearing - Google Patents
Double-row reducing conic rolling bearing Download PDFInfo
- Publication number
- CN2607465Y CN2607465Y CN 03216121 CN03216121U CN2607465Y CN 2607465 Y CN2607465 Y CN 2607465Y CN 03216121 CN03216121 CN 03216121 CN 03216121 U CN03216121 U CN 03216121U CN 2607465 Y CN2607465 Y CN 2607465Y
- Authority
- CN
- China
- Prior art keywords
- roller
- inner ring
- biserial
- ring
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a biserial reducing conical roller bearing, which comprises an outer ring, an inner ring, a roller and a frame. The outer ring, the inner ring and the roller are provided with cone angle. Characteristically, the inner ring, the roller and the frame arranged in the outer ring are all biserial. Wherein, the inner diameter of one inner ring is bigger than the inner diameter of the other inner ring. The two queues of inner rings have different inner diameters and different widths but share the same outer ring. The function and load of the two inner rings are different too. Therefore, the bearing ability and service life of the inner rings are relatively improved. The frame has high wearing property so as to meet requirement high rotation speed of the bearing. The roller pocket on the frame is a rectangular tapered hole, and a beam on outer surface of the frame is primarily carved with a mark. Each roller are provided with four lockable points so as to prevent the roller slipping off the roller pocket and meet the requirements of high speed, high precision and long service life relating to the bearing used in oil drilling platform.
Description
Affiliated technical field
The utility model belongs to the tapered roller bearing technical field, mainly proposes a kind of biserial reducing 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 reaches 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, and 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
The purpose of this utility model promptly produces thus, proposes a kind of reasonable in design, simple in structure, reliable performance, high rotating speed, high-mechanic load, the biserial reducing tapered roller bearing in high working life.
The utility model realizes that the technological scheme that above-mentioned purpose is taked is: biserial inner ring, retainer and roller are set in the outer ring, and 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.
The utility model is reasonable in design.Because the internal diameter difference of two row inner rings, width are also different, an and shared outer ring, 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 bearing capacity of its load improves a lot, its working life also corresponding being improved.Because what retainer adopted is the manganese brass material, this material has higher wear resistance, thereby can satisfy the high-revolving requirement of bearing.And roller pocket hole is whole rectangular cone shape hole on the retainer, and on retainer outer surface beam, cut a hole in advance and print, each roller has all designed four lock points, 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.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is the utility model retainer structural representation.
Among the figure, 1, the outer ring, 2,3, inner ring, 4,5, roller, 6,7, retainer, 8, mounting hole, 9, the pocket hole, 10, the long strip groove, 11, the lock point.
Embodiment
It is as follows to provide embodiment of the present utility model in conjunction with the accompanying drawings:
As shown in Figure 1, present embodiment is that two row inner rings 2,3 (i.e. first inner ring 2, second inner ring 3) are set in outer ring 1, the internal diameter of this two row inner ring is all different with width, 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 what this bearing mainly bore is axial load, therefore be 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 row inner ring of internal diameter.Be equipped with retainer 6,7 (i.e. first retainer 6, second retainer 7) and roller 4,5 (i.e. first roller 4, second roller 5) at every row inner ring 2,3 and 1 of outer ring.Because the internal diameter difference of two row inner rings 2,3, width are also different, thereby it is also different to be mated retainer 6,7 its sizes 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 is selected the manganese brass material for use, 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 the roller pocket hole 9 of retainer 6,7 is designed to whole rectangular cone shape hole, for guarantee that the roller after the assembling does not drop out in retainer, be equipped with the long strip groove 10 of double headed roller circular arc on 9 the cage bar in two pocket holes on the retainer 6,7, this long strip groove 10 all is pressed with two lock points 11 to pocket hole direction, and each roller all has four lock points thus.Before assembling, cutter seal on retainer 6,7 outer surface beams in advance like this, from the cutter seal outer surface roller of packing into, has just guaranteed that roller can not drop out from the pocket hole.
Claims (5)
1, a kind of biserial reducing tapered roller bearing has outer ring (1), inner ring, roller and retainer, and outer ring, inner ring and roller all have cone angle; It is characterized in that: described inner ring (2) (3), roller (4) (5) and the retainer (6) (7) that is arranged in the outer ring (1) is biserial, and the internal diameter size of one of them inner ring (2) is greater than the internal diameter size of another inner ring (3).
2, biserial reducing tapered roller bearing according to claim 1 is characterized in that: the cone angle of the row inner ring (2) that described internal diameter is big is greater than the cone angle of the little row inner ring (3) of internal diameter.
3, biserial reducing tapered roller bearing according to claim 1, it is characterized in that: the pocket hole (9) on described retainer (6), (7) is whole rectangular cone shape hole, and on the beam between pocket hole (9), having long strip groove (10), this long strip groove (10) is equipped with lock point (11) to pocket hole direction.
4, biserial reducing tapered roller bearing according to claim 1 is characterized in that: described outer ring (1) is provided with mounting hole (8).
5, according to claim 1 or 3 described biserial reducing tapered roller bearings, it is characterized in that: be printed on the cutter seal on described retainer (6) (7) the outer surface beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03216121 CN2607465Y (en) | 2003-04-02 | 2003-04-02 | Double-row reducing conic rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03216121 CN2607465Y (en) | 2003-04-02 | 2003-04-02 | Double-row reducing conic rolling bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2607465Y true CN2607465Y (en) | 2004-03-24 |
Family
ID=34160636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03216121 Expired - Fee Related CN2607465Y (en) | 2003-04-02 | 2003-04-02 | Double-row reducing conic rolling bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2607465Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747694A (en) * | 2013-12-27 | 2015-07-01 | 陕西汉德车桥有限公司 | Driving bevel gear support bearing unit |
| CN107939831A (en) * | 2017-12-27 | 2018-04-20 | 瓦房店轴承集团有限责任公司 | New integrated-type hub bearing |
| CN108071673A (en) * | 2016-11-11 | 2018-05-25 | 镇江东正精工机械有限公司 | A kind of double-row conical bearing |
| CN108361276A (en) * | 2018-04-24 | 2018-08-03 | 瓦房店爱国轴承研究院有限公司 | Asymmetric taper roll bearing |
| CN111894973A (en) * | 2020-08-10 | 2020-11-06 | 洛阳Lyc轴承有限公司 | Double-row tapered roller bearing with copper retainer structure |
-
2003
- 2003-04-02 CN CN 03216121 patent/CN2607465Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747694A (en) * | 2013-12-27 | 2015-07-01 | 陕西汉德车桥有限公司 | Driving bevel gear support bearing unit |
| CN104747694B (en) * | 2013-12-27 | 2017-05-17 | 陕西汉德车桥有限公司 | Driving bevel gear support bearing unit |
| CN108071673A (en) * | 2016-11-11 | 2018-05-25 | 镇江东正精工机械有限公司 | A kind of double-row conical bearing |
| CN107939831A (en) * | 2017-12-27 | 2018-04-20 | 瓦房店轴承集团有限责任公司 | New integrated-type hub bearing |
| CN108361276A (en) * | 2018-04-24 | 2018-08-03 | 瓦房店爱国轴承研究院有限公司 | Asymmetric taper roll bearing |
| CN108361276B (en) * | 2018-04-24 | 2020-06-16 | 瓦房店爱国轴承研究院有限公司 | Asymmetric tapered roller bearing |
| CN111894973A (en) * | 2020-08-10 | 2020-11-06 | 洛阳Lyc轴承有限公司 | Double-row tapered roller bearing with copper retainer structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |