CN201651047U - Improved double-row tapered roller bearing - Google Patents
Improved double-row tapered roller bearing Download PDFInfo
- Publication number
- CN201651047U CN201651047U CN2010203004660U CN201020300466U CN201651047U CN 201651047 U CN201651047 U CN 201651047U CN 2010203004660 U CN2010203004660 U CN 2010203004660U CN 201020300466 U CN201020300466 U CN 201020300466U CN 201651047 U CN201651047 U CN 201651047U
- Authority
- CN
- China
- Prior art keywords
- tapered roller
- improved double
- roller bearing
- bearing
- inner ring
- 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
Images
Abstract
The utility model provides an improved double-row tapered roller bearing which belongs to the technical field of bearings and solves the problems of easy generation of edge effect and reduction of service life of the traditional double-row tapered roller bearing. The improved double-row tapered roller bearing comprises double outer rings and a single inner ring; two groups of retainers are arranged between the outer rings and the inner ring; tapered rollers are installed in the retainers; convexities of rolling surfaces and outer diameters of the tapered rollers adopt a logarithmic hyperbolic shape; and the convexity of the tapered rollers is 5-8 mum. The improved double-row tapered roller bearing has the advantages of effectively reduced friction torque, reduced fatigue damage and prolonged service life.
Description
Technical field
The utility model belongs to technical field of bearings, relates to a kind of tapered roller bearing, particularly a kind of improved double-row conical bearing.
Background technique
Tapered roller bearing can separate, and can be installed respectively by assembly and outer ring that inner ring is formed with roller, retainer.The Line of contact of roller and raceway contact point correction can reduce stress and concentrate.Tapered roller bearing can bear big radial load and thrust load.Because tapered roller bearing can only transmit unidirectional thrust load, therefore, just need another tapered roller bearing of symmetry installation with it for transmitting rightabout thrust load.This tapered roller bearing needs two to install together when mounted, has increased processing cost like this, and inconvenience, wasting space resource are installed.
For this reason, people have proposed various solutions through long-term exploration, a kind of outer ring with double raceway that has has for example been proposed, two single raceway inner rings, the assembling of inner ring and outer ring is highly identical, the size of this bearing own is big, thereby very trouble is installed, it is difficult for fixing with bearing support shell aperture relative position when mounted, for the bad installation of the miscellaneous part in the bearing support, the dismounting trouble, because it is dumb that the roller between inner ring, outer ring rolls, be easy to damage, the life-span of bearing is short.
Moreover the low momentization of rolling bearing with raising mechanical efficiency and energy-conservation relevant, is very important exploitation key element directly.The factor that influences bearing frictional torque is a lot, all directly has influence on the friction torque of bearing as the slip resistance between stirring resistance, roller and the rib of rolling viscous resistance, lubricant oil, finally has influence on the wearing and tearing and the life-span of bearing.Wherein the roller protuberance shape has the greatest impact, present widely used roller straight edge line bearing, though carry greatlyyer, processing is simple, is easy to generate when the high speed load running " corner effect ", because the effect of corner effect, stressed greater than intermediate portion of bearing two ends stressed, after use after a while, bearing corner part and lasso are in contact with it the position and at first wear and tear, cause the bearing premature aging, reduce working life greatly.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, it is strong and by changing the roller protuberance shape to have proposed a kind of easy to assembly, bearing capacity, reduce the tapered roller bearing friction torque, reduce the fatigue damage of bearing, improve the improved double-row conical bearing in working life.
The purpose of this utility model can realize by following technical proposal: a kind of improved double-row conical bearing, comprise two outer rings and single inner ring, between outer ring and inner ring, be provided with two groups of retainers, in described retainer, tapered roller is installed, it is characterized in that, the convexity of described rolling surface and conical roller external-diameter all adopts the logarithm hyperbolic shape, and described tapered roller convexity is 5-8 μ m.
Change the roller bus into the logarithm hyperbolic shape by straight line, the purpose of She Zhiing is like this, Point of Strength when bearing is static is the convex surface summit, but during the high speed load running, because the acting in conjunction of " convex surface effect " and " corner effect ", make bearing reach evenly stressed, thereby reduced the wearing and tearing of corner, make prolong the working life of this improved double-row conical bearing.
In above-mentioned improved double-row conical bearing, described tapered roller convexity is 6 μ m.
The purpose of She Zhiing is like this, the wearing and tearing of the minimizing corner that the tapered roller convexity of 6 μ m can be minimum.
In above-mentioned improved double-row conical bearing, the total height of described outer ring is less than the height of inner ring.
The purpose of She Zhiing is like this, is easy to the installation and removal of tapered roller.
Compared with prior art, this improved double-row conical bearing has the following advantages:
1, the total height of this improved double-row conical bearing outer ring is less than the height of inner ring, and this structure installation and removal are convenient.
2, this improved double-row conical bearing has two outer rings, and an inner ring reduces influencing each other between each row roller as far as possible, reduces the probability that is damaged of roller.
3, tapered roller rolls flexibly in this improved double-row conical bearing, and can prevent that roller phenomenon loose and positioning from taking place.
4, this improved double-row conical bearing long service life.
Description of drawings
Fig. 1 is the sectional view of this improved double-row conical bearing.
Among the figure, 1, inner ring; 2, outer ring; 3, tapered roller; 4, retainer.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, this improved double-row conical bearing comprises two outer rings 2 and single inner ring 1, between outer ring 2 and inner ring 1, be provided with two groups of retainers 4, tapered roller 3 is installed in retainer 4, setting can reduce influencing each other of 3 of each row tapered rollers like this, make tapered roller 3 be difficult for being damaged, thereby prolong the working life of tapered roller 3.
In order to make the installation and removal of tapered roller 3 in this improved double-row conical bearing, the total height of outer ring 2 is set to the total height less than inner ring 1.
The convexity of rolling surface and tapered roller 3 external diameters is made as the logarithm hyperbolic shape, and tapered roller 3 convexitys are 6 μ m.The purpose of She Zhiing is like this, Point of Strength when bearing is static is the convex surface summit, but during the high speed load running, because the acting in conjunction of " convex surface effect " and " corner effect ", make bearing reach evenly stressed, thereby reduced the wearing and tearing of corner, made prolong the working life of this improved double-row conical bearing.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as inner ring 1, outer ring 2, tapered roller 3, retainer 4 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (3)
1. improved double-row conical bearing, comprise two outer rings (2) and single inner ring (1), between outer ring (2) and inner ring (1), be provided with two groups of retainers (4), tapered roller (3) is installed in described retainer (4), it is characterized in that, the convexity of described rolling surface and tapered roller (3) external diameter all adopts the logarithm hyperbolic shape, and described tapered roller (3) convexity is 5-8 μ m.
2. improved double-row conical bearing according to claim 1 is characterized in that, described tapered roller (3) convexity is 6 μ m.
3. improved double-row conical bearing according to claim 1 and 2 is characterized in that, the total height of described outer ring (2) is less than the height of inner ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203004660U CN201651047U (en) | 2010-01-12 | 2010-01-12 | Improved double-row tapered roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203004660U CN201651047U (en) | 2010-01-12 | 2010-01-12 | Improved double-row tapered roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201651047U true CN201651047U (en) | 2010-11-24 |
Family
ID=43116282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203004660U Expired - Fee Related CN201651047U (en) | 2010-01-12 | 2010-01-12 | Improved double-row tapered roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201651047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110520641A (en) * | 2017-03-31 | 2019-11-29 | 蒂森克虏伯罗特艾德有限公司 | Rolling bearing system and wind turbine |
-
2010
- 2010-01-12 CN CN2010203004660U patent/CN201651047U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110520641A (en) * | 2017-03-31 | 2019-11-29 | 蒂森克虏伯罗特艾德有限公司 | Rolling bearing system and wind turbine |
| CN110520641B (en) * | 2017-03-31 | 2021-07-13 | 蒂森克虏伯罗特艾德德国有限公司 | Rolling bearing device and wind turbine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2012264981B2 (en) | Large rolling bearing | |
| CN101520071B (en) | Tapered roller bearing with high strength and low friction torque | |
| CN210106408U (en) | Axial high-bearing-capacity shield machine main bearing with novel structure | |
| CN201651047U (en) | Improved double-row tapered roller bearing | |
| CN201593557U (en) | Modified tapered roller bearing | |
| CN210440424U (en) | Ball bearing with internal lubricating oil not prone to dripping | |
| CN101586605A (en) | Double-row roller bearing without flange | |
| CN103671507A (en) | High-bearing self-aligning roller bearing | |
| CN201487049U (en) | Tapered roller bearing with high strength and low frictional moment | |
| CN201083232Y (en) | Double-row column roller bearing with aligning ring | |
| CN201083229Y (en) | Rolling bearing for roller | |
| CN210003670U (en) | pin cold riveting type four-row cylindrical roller bearing | |
| CN213176493U (en) | Reinforced rolling mill bearing | |
| CN205780285U (en) | A kind of automobile steering device biserial deep groove ball bearing | |
| CN201651036U (en) | High-temperature resistant deep groove ball bearing | |
| CN213451343U (en) | Roller bearing | |
| CN202790085U (en) | Bidirectional thrust self-aligning roller bearing | |
| CN210003671U (en) | kinds of reinforced bearing | |
| CN216077982U (en) | Retainer for tapered roller bearing | |
| CN202531647U (en) | Self-aligning roller bearing | |
| CN212003949U (en) | Double-row tapered roller bearing | |
| CN203214604U (en) | Double-row cylindrical roller bearing | |
| CN218177741U (en) | Self-aligning tapered roller bearing | |
| CN214499775U (en) | Novel tapered roller bearing flange structure | |
| CN217926759U (en) | Bearing and transmission equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20180112 |