CN201651043U - Multifunctional thin-wall special type bearing for gear box - Google Patents
Multifunctional thin-wall special type bearing for gear box Download PDFInfo
- Publication number
- CN201651043U CN201651043U CN2010201883432U CN201020188343U CN201651043U CN 201651043 U CN201651043 U CN 201651043U CN 2010201883432 U CN2010201883432 U CN 2010201883432U CN 201020188343 U CN201020188343 U CN 201020188343U CN 201651043 U CN201651043 U CN 201651043U
- Authority
- CN
- China
- Prior art keywords
- bearing
- inner ring
- ring raceway
- outer ring
- convexity
- 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 - Lifetime
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Abstract
The utility model relates to a bearing, in particular to a multifunctional thin-wall special type bearing for a gear box. The bearing comprises an inner ring, an outer ring, a plurality of rollers clamped between the inner ring and the outer ring, and a maintainer for separating the rollers and leading the rollers to move, wherein an inner ring raceway, an outer ring raceway and the rollers contact in a convex curve mode; and the convexity of the inner ring raceway is from 2 to 6 micrometers, the convexity of the outer ring raceway is from 3 to 7 micrometers, and the convexity of the rollers is from 3 to 7 micrometers. The utility model has the advantage of reasonable structure. The utility model can efficiently control the radius scattered difference of a spherical base surface and the flange angel, reduce the roughness of the spherical base surface and a flange, greatly devrease the friction torque of the bearing, reduce the fatigue damage of the bearing, and greatly prolong the service life of the bearing.
Description
Technical field:
The utility model relates to a kind of bearing, especially a kind of multifunctional gear box book wall special bearing.
Background technique:
At present, international machine building industry just develops towards low energy consumption, multi-functional, ease of use and high reliability direction.Along with the progress of Machine Manufacturing Technology, aspect raising bearing performance, quality and various informativeization, suitable progress is arranged also.In order to improve the performance of engineering goods, improve the utilization ratio of product, progressively to multi-functional, light, the miniaturization development, to the many employings of the requirement of bearing can bear radially, the axial tapered roller bearing of joint load power.Compare with ball bearing, though structurally tapered roller bearing have bearing capacity big, can bear advantages such as radial load and thrust load, life-span be long simultaneously, but the roller end face of tapered roller bearing and inner ring large-flange are bearing contact load often with slip, bigger than Friction Moment of Ball Bearings, easily cause bearing early failue.Failure mode mainly is contact fatigue, wearing and tearing.
The model utility content:
The utility model provides a kind of multifunctional gear box book wall special bearing, it is rational in infrastructure, can be under the prerequisite that does not reduce the bearing rated load, effectively control roller ball basal plane radius scattered error and rib angle, reduce ball basal plane and rib roughness, significantly reduce bearing frictional torque, reduce bearing fatigue and damage, prolong the working life of bearing greatly, solved problems of the prior art.
The utility model is to solve the problems of the technologies described above the technological scheme that is adopted to be: it comprises inner ring and outer ring, be clipped in several rollers between inner ring and the outer ring and separate the also retainer of guide rolls motion, described inner ring raceway, outer ring raceway and roller are the convex outer curve shape and contact, the inner ring raceway convexity is 2～6 μ m, the outer ring raceway convexity is 3～7 μ m, and the roller convexity is 3～7 μ m.
Described inner ring raceway, outer ring raceway and roller convex outer curve are shaped as the logarithm hyperbolic shape.
The roughness of described inner ring rib is 0.3 μ m, and the roller ball base surface roughness is 0.3 μ m.
The utility model compared with prior art, simple and reasonable, inner ring raceway, outer ring raceway and roller adopt the hyp convex shape of logarithm to contact, by strengthening the convexity of inner ring raceway, outer ring raceway and roller, effectively control roller ball basal plane radius scattered error and rib angle, reduced rib and ball base surface roughness, significantly reduced bearing frictional torque, reduce the bearing fatigue damage, prolonged bearing working life greatly.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Among the figure, 1, inner ring; 2, outer ring; 3, roller; 4, retainer; 5, inner ring raceway; 6, outer ring raceway.
Embodiment:
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, the utility model is elaborated.
As shown in FIG., the utility model comprises inner ring 1 and outer ring 2, be clipped in several rollers 3 between inner ring 1 and the outer ring 2 and separate the also retainer 4 of guide rolls 3 motions, described inner ring raceway 5, outer ring raceway 6 and roller 3 are logarithm hyperbola convex shape and contact, inner ring raceway 5 convexitys are 2～6 μ m, outer ring raceway 6 convexitys are 3～7 μ m, and roller 3 convexitys are 3～7 μ m.
The roughness of described inner ring 1 rib is 0.3 μ m, and roller 3 ball base surface roughness are 0.3 μ m.During design roller 3 ball basal plane radiuses, parameter gets 0.86, P=107.702mm.
The utility model bearing structure is reasonable, inner ring raceway 5, outer ring raceway 6 and roller 3 adopt the hyp convex shape of logarithm to contact, by strengthening the convexity of inner ring raceway 5, outer ring raceway 6 and roller 3, roller 3 ball basal plane radius scattered error and rib angles have effectively been controlled, rib and ball base surface roughness have been reduced, significantly reduce bearing frictional torque, reduced the bearing fatigue damage, prolonged bearing working life greatly.
The utility model does not describe part in detail, is those skilled in the art of the present technique's known technology.
Claims (3)
1. multifunctional gear box book wall special bearing, comprise inner ring and outer ring, be clipped in several rollers between inner ring and the outer ring and separate the also retainer of guide rolls motion, it is characterized in that: described inner ring raceway, outer ring raceway and roller are the convex outer curve shape and contact, the inner ring raceway convexity is 2～6 μ m, the outer ring raceway convexity is 3～7 μ m, and the roller convexity is 3～7 μ m.
2. a kind of multifunctional gear box book wall special bearing according to claim 1, it is characterized in that: described inner ring raceway, outer ring raceway and roller convex outer curve are shaped as the logarithm hyperbolic shape.
3. a kind of multifunctional gear box book wall special bearing according to claim 1, it is characterized in that: the roughness of described inner ring rib is 0.3 μ m, the roller ball base surface roughness is 0.3 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201883432U CN201651043U (en) | 2010-05-13 | 2010-05-13 | Multifunctional thin-wall special type bearing for gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201883432U CN201651043U (en) | 2010-05-13 | 2010-05-13 | Multifunctional thin-wall special type bearing for gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201651043U true CN201651043U (en) | 2010-11-24 |
Family
ID=43116278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201883432U Expired - Lifetime CN201651043U (en) | 2010-05-13 | 2010-05-13 | Multifunctional thin-wall special type bearing for gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201651043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565022A (en) * | 2014-12-31 | 2015-04-29 | 浙江大学 | Variable-contact angle tapered roller bearing |
-
2010
- 2010-05-13 CN CN2010201883432U patent/CN201651043U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565022A (en) * | 2014-12-31 | 2015-04-29 | 浙江大学 | Variable-contact angle tapered roller bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
|
| CX01 | Expiry of patent term |