CN107975537A - It can bear the double-row conical bearing of lack of balance load - Google Patents
It can bear the double-row conical bearing of lack of balance load Download PDFInfo
- Publication number
- CN107975537A CN107975537A CN201711454391.4A CN201711454391A CN107975537A CN 107975537 A CN107975537 A CN 107975537A CN 201711454391 A CN201711454391 A CN 201711454391A CN 107975537 A CN107975537 A CN 107975537A
- Authority
- CN
- China
- Prior art keywords
- bearing
- row
- row tapered
- roller
- tapered roller
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/50—Other types of ball or roller bearings
- F16C19/505—Other types of ball or roller bearings with the diameter of the rolling elements of one row differing from the diameter of those of another row
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/34—Rollers; Needles
- F16C33/36—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces
- F16C33/366—Tapered rollers, i.e. rollers generally shaped as truncated cones
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention relates to technical field of bearing processing, is specifically a kind of double-row conical bearing for bearing lack of balance load.The bearing is unsymmetric structure, and the A row of bearing are different from B row design parameters, and the number of A row rollers is more than the number of B row rollers, and A row roller length is more than B row rollers, and A row roller diameter is less than B row rollers.The present invention can be remarkably reinforced the carrying contact stress and carrying rigidity of A row, and when bearing bears eccentric load and the tilting moment that the effect of lack of balance load produces, bearing of the invention can effectively reduce the stress concentration of bearing, improve the service life of bearing.The carrying center of bearing of the present invention can so bear certain eccentric load and tilting moment, reduce the stress concentration of bearing, improve the service life of bearing not at the center of bearing.
Description
Technical field
The present invention relates to technical field of bearing processing, is specifically a kind of double-row conical axis for bearing lack of balance load
Hold.
Background technology
Traditional double-row conical bearing designs for symmetrical structure, and the carrying center of bearing is in the center of bearing, axis
Position is carried at the center of bearing, bearing stand under load is balanced, but during the center of loading ability of bearing position no longer bearing, and bearing will be by
, there is unbalance loading, Bearing inner stand under load will appear from stress concentration, cause bearing early fatigue in certain tilting moment effect.
The content of the invention
In order to solve the above technical problems, it is an object of the present invention to provide a kind of biserial circular cone for bearing lack of balance load
Roller bearing.
For achieving the above object, the present invention uses following technical scheme：
A kind of double-row conical bearing for bearing lack of balance load, the bearing are the two asymmetric taper roll bearing knots of row
Structure, is respectively A row tapered roller bearings and B row tapered roller bearings, and the bearing outer ring arranges for A row tapered roller bearings and B
Taper roll bearing integral outer ring；The bearing inner race is respectively in A row tapered roller bearings inner ring and B row tapered roller bearings
Circle；The number of A row tapered roller bearing rollers is more than the number of B row tapered roller bearing rollers, A row tapered roller bearing rollers
Length is more than B row tapered roller bearing rollers, and A row tapered roller bearing roller diameters size is rolled less than B row tapered roller bearings
Sub- diameter, A row tapered roller bearings roller and B row tapered roller bearing rollers are respectively placed in and the corresponding holding of roller dimension
In frame A and retainer B.
Compared with prior art, beneficial effects of the present invention are：The carrying center of bearing of the present invention not at the center of bearing,
Certain eccentric load and tilting moment can be so born, reduces the stress concentration of bearing, improves the service life of bearing.
Bearing of the present invention is suitable for the application operating mode that loading ability of bearing center changes, and can be used than traditional double-row conical bearing
Service life improves 20%.
Brief description of the drawings
Fig. 1 bearing preferred embodiment structure diagrams of the present invention；
1. outer ring, 2a. A row tapered roller bearing inner rings, 2b. B row tapered roller bearing inner rings, 3a. A row taper roller bearings
Roller,
3b. B row tapered roller bearing rollers, 4a. retainers A, 4b. retainer B；
Fig. 2 conventional symmetrical bearing stands under load and stress distribution situation；
Fig. 3 bearing stands under load of the present invention and stress distribution situation.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
A kind of double-row conical bearing for bearing lack of balance load, including outer ring, inner ring, roller, retainer, it is described
Bearing arranges asymmetric taper roll bearing structures, respectively A row tapered roller bearings and B row tapered roller bearings for two, described
Bearing outer ring 1 is A row tapered roller bearings and B row tapered roller bearings integral outer ring；The bearing inner race is respectively A row circular cones
Roller bearing inner ring 2a and B row tapered roller bearing inner ring 2b；Because be subjected to because lack of balance load produce eccentric load and incline
Torque is covered, therefore the number of A row tapered roller bearing rollers is more than the number of B row tapered roller bearing rollers, A row tapered rollers
Bearing roller length is more than B row tapered roller bearing roller lengths, and A row tapered roller bearing roller diameters size is less than B row circles
Taper roller bearing roller diameter, A row tapered roller bearing roller 3a and B row tapered roller bearing rollers 3b is respectively placed in and roller
In size corresponding engineering plastics cage A4a and engineering plastics cage B4b.
Embodiment 1
1. for symmetric form bearing（I.e. two row rolling element parameters are identical）, when bearing stand under load center is overlapped with loading ability of bearing center
When, such as scheme, loading ability of bearing stress is uniform, is preferable stress condition.When bearing stand under load center is with respect to loading ability of bearing off-centring
During certain distance（This example is 21.5mm）When, the inside and outside circle raceway in stand under load central side occurs with rolling element contact stress
Serious unbalance loading situation, higher than the stress of preferable stress condition by 75%, stress is concentrated and causes bearing early fatigue.
2. for asymmetric bearing（That is two row rolling element parameters are different）, when in bearing stand under load center and loading ability of bearing
When the heart overlaps, such as scheme, loading ability of bearing stress is uniform, is preferable stress condition.When bearing stand under load center is with respect in loading ability of bearing
When the heart deviates certain distance（This example is 21.5mm）When, the inside and outside circle raceway in stand under load central side is contacted with rolling element should
There is slight unbalance loading situation in power, while because roller quantity is more, length length, the rigidity of bearing is improved, only than preferable stress bar
The stress of part is high by 17%, because reducing the stress concentration of bearing, improves bearing service life.
Claims (1)
1. the double-row conical bearing of lack of balance load can be born, it is characterised in that the bearing is the two asymmetric circular cones of row
Roller bearing structure, is respectively A row tapered roller bearings and B row tapered roller bearings, the bearing outer ring is A row tapered rollers
Bearing and B row tapered roller bearings integral outer ring；The bearing inner race is respectively A row tapered roller bearings inner ring and B row circular cones
Roller bearing inner ring；The number of A row tapered roller bearing rollers is more than the number of B row tapered roller bearing rollers, the rolling of A row circular cone
Sub- bearing roller length is more than B row tapered roller bearing roller lengths, and A row tapered roller bearing roller diameters size is arranged less than B
Taper roll bearing roller diameter, A row tapered roller bearings roller and B row tapered roller bearing rollers are respectively placed in and roller ruler
In very little corresponding retainer A and retainer B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711454391.4A CN107975537A (en) | 2017-12-28 | 2017-12-28 | It can bear the double-row conical bearing of lack of balance load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711454391.4A CN107975537A (en) | 2017-12-28 | 2017-12-28 | It can bear the double-row conical bearing of lack of balance load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107975537A true CN107975537A (en) | 2018-05-01 |
Family
ID=62008032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711454391.4A Pending CN107975537A (en) | 2017-12-28 | 2017-12-28 | It can bear the double-row conical bearing of lack of balance load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107975537A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008084759A1 (en) * | 2007-01-10 | 2008-07-17 | Ntn Corporation | Bearing device for wheel |
| CN105102835A (en) * | 2012-12-14 | 2015-11-25 | Skf公司 | Cartridge bearing assembly |
| CN105378308A (en) * | 2013-07-30 | 2016-03-02 | 舍弗勒技术股份两合公司 | Asymmetric tapered roller bearing for supporting a variator wheel on a variator shaft |
| CN208534979U (en) * | 2017-12-28 | 2019-02-22 | 瓦房店轴承集团有限责任公司 | A kind of double row tapered roller bearing for bearing lack of balance load |
-
2017
- 2017-12-28 CN CN201711454391.4A patent/CN107975537A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008084759A1 (en) * | 2007-01-10 | 2008-07-17 | Ntn Corporation | Bearing device for wheel |
| CN105102835A (en) * | 2012-12-14 | 2015-11-25 | Skf公司 | Cartridge bearing assembly |
| CN105378308A (en) * | 2013-07-30 | 2016-03-02 | 舍弗勒技术股份两合公司 | Asymmetric tapered roller bearing for supporting a variator wheel on a variator shaft |
| CN208534979U (en) * | 2017-12-28 | 2019-02-22 | 瓦房店轴承集团有限责任公司 | A kind of double row tapered roller bearing for bearing lack of balance load |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180501 |
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| WD01 | Invention patent application deemed withdrawn after publication |