CN208534979U - A kind of double row tapered roller bearing for bearing lack of balance load - Google Patents
A kind of double row tapered roller bearing for bearing lack of balance load Download PDFInfo
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- CN208534979U CN208534979U CN201721870795.7U CN201721870795U CN208534979U CN 208534979 U CN208534979 U CN 208534979U CN 201721870795 U CN201721870795 U CN 201721870795U CN 208534979 U CN208534979 U CN 208534979U
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- bearing
- tapered roller
- row tapered
- roller bearing
- roller
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Abstract
The utility model relates to technical field of bearing processing, specifically a kind of double row tapered roller bearing for bearing lack of balance load.The bearing is unsymmetric structure, and the A column of bearing are different from B column design parameter, and the number of A column roller is more than the number of B column roller, and A column roller length is greater than B column roller, and A column roller diameter is less than B column roller.The carrying contact stress and carrying rigidity of A column can be remarkably reinforced in the utility model, when bearing bears the eccentric load that the effect of lack of balance load generates and tilting moment, the bearing of the utility model can effectively reduce the stress concentration of bearing, improve the service life of bearing.The carrying center of the utility model bearing can bear certain eccentric load and tilting moment in this way, reduce the stress concentration of bearing, improve the service life of bearing not at the center of bearing.
Description
Technical field
The utility model relates to technical field of bearing processing, specifically a kind of double row tapered roller for bearing lack of balance load
Sub- bearing.
Background technique
Traditional double row tapered roller 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, the loaded equilibrium of bearing, the but when center of loading ability of bearing position no longer bearing, bearing will be by
, there is unbalance loading, Bearing inner is loaded stress concentration will occurs, cause bearing early fatigue in certain tilting moment effect.
Summary of the invention
In order to solve the above technical problems, the utility model aim is to provide a kind of biserial circular cone that can bear lack of balance load
Roller bearing.
For achieving the above object, the utility model uses following technical scheme:
A kind of double row tapered roller bearing for bearing lack of balance load, the bearing are the two asymmetric taper roller axis of column
Bearing structure, respectively A row tapered roller bearing and B row tapered roller bearing, the bearing outer ring be A row tapered roller bearing and
B row tapered roller bearing integral outer ring；The bearing inner race is respectively A row tapered roller bearing inner ring and B row tapered roller axis
Hold inner ring；The number of A row tapered roller bearing roller is more than the number of B row tapered roller bearing roller, A row tapered roller axis
Bearing roller length is greater than B row tapered roller bearing roller, and A row tapered roller bearing roller diameter size is less than B row tapered roller
Bearing roller, A row tapered roller bearing roller and B row tapered roller bearing roller are respectively placed in corresponding with roller dimension
In retainer A and retainer B.
Compared with prior art, the utility model has the following beneficial effects: the carrying center of the utility model bearing is not in axis
The center held can bear certain eccentric load and tilting moment in this way, reduce the stress concentration of bearing, improve bearing
Service life.Bearing of the present invention is suitable for the application operating condition that loading ability of bearing center changes, can be than traditional double row tapered roller
Sub- bearing service life improves 20%.
Detailed description of the invention
Fig. 1 the utility model bearing preferred embodiment structural schematic diagram；
1. outer ring, 2a.A row tapered roller bearing inner ring, 2b.B row tapered roller bearing inner ring, 3a.A column taper roller bearing
Roller, 3b.B row tapered roller bearing roller, 4a. retainer A, 4b. retainer B, A.A row tapered roller bearing, B.B column circle
Taper roller bearing；
Fig. 2 conventional symmetrical bearing is loaded and stress distribution situation, a. equilibrium loading conditions, b. lack of balance loading conditions, a '
Bearing stress when balanced loaded, bearing stress when b ' is eccentric loaded, wherein the loaded center F., H. bearing centre；
Fig. 3 the utility model bearing is loaded and stress distribution situation, a. equilibrium loading conditions, b. lack of balance loading conditions,
Bearing stress when a ' is balanced loaded, bearing stress when b ' is eccentric loaded, wherein the loaded center F., H. bearing centre.
Specific embodiment
The utility model is described further below in conjunction with specific embodiment.
A kind of double row tapered roller bearing for bearing lack of balance load, including outer ring, inner ring, roller, retainer, it is described
Bearing arranges asymmetric tapered roller bearing structures, respectively A row tapered roller bearing and B row tapered roller bearing for two, described
Bearing outer ring 1 is A row tapered roller bearing and B row tapered roller bearing integral outer ring；The bearing inner race is respectively A column circular cone
Roller bearing inner ring 2a and B row tapered roller bearing inner ring 2b；Because of the eccentric load for being subjected to generate by lack of balance load and incline
Torque is covered, therefore the number of A row tapered roller bearing roller is more than the number of B row tapered roller bearing roller, A row tapered roller
Bearing roller length is greater than B row tapered roller bearing roller length, and A row tapered roller bearing roller diameter size is less than B column circle
Taper roller bearing roller diameter, A row tapered roller bearing roller 3a and B row tapered roller bearing roller 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 column rolling element parameters are identical), when the loaded center of bearing and loading ability of bearing center weight
When conjunction, such as Fig. 2, loading ability of bearing stress is uniform, is ideal stress condition.When the loaded center of bearing is inclined with respect to loading ability of bearing center
When moving certain distance when (this example is 21.5mm), the inside and outside circle raceway in loaded central side goes out with rolling element contact stress
Now serious unbalance loading situation, higher than the stress of ideal stress condition by 75%, stress concentration causes bearing early fatigue.
2. bearing (i.e. two column rolling element parameters are different) asymmetric for the present invention, when the loaded center of bearing is held with bearing
When load center is overlapped, such as Fig. 3, loading ability of bearing stress is uniform, is ideal stress condition.When the loaded center of bearing is held with respect to bearing
When carrying off-centring certain distance when (this example is 21.5mm), the inside and outside circle raceway in loaded central side connects with rolling element
There is slight unbalance loading situation in touching stress, while because roller quantity is more, length is long, improving the rigidity of bearing, only than it is ideal by
The stress of power condition is high by 17%, and the stress because reducing bearing is concentrated, and improves bearing service life.
Claims (1)
1. the double row tapered roller bearing that one kind can bear lack of balance load, which is characterized in that the bearing is that two column are asymmetric
Tapered roller bearing structure, respectively A row tapered roller bearing and B row tapered roller bearing, the bearing outer ring are A column circular cone
Roller bearing and B row tapered roller bearing integral outer ring；The bearing inner race is respectively A row tapered roller bearing inner ring and B column
Tapered roller bearing internal ring；The number of A row tapered roller bearing roller is more than the number of B row tapered roller bearing roller, A column circle
Taper roller bearing roller length is greater than B row tapered roller bearing roller, and A row tapered roller bearing roller diameter size is arranged less than B
Tapered roller bearing roller, A row tapered roller bearing roller and B row tapered roller bearing roller are respectively placed in and roller dimension phase
In corresponding retainer A and retainer B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721870795.7U CN208534979U (en) | 2017-12-28 | 2017-12-28 | A kind of double row tapered roller bearing for bearing lack of balance load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721870795.7U CN208534979U (en) | 2017-12-28 | 2017-12-28 | A kind of double row tapered roller bearing for bearing lack of balance load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208534979U true CN208534979U (en) | 2019-02-22 |
Family
ID=65398654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721870795.7U Active CN208534979U (en) | 2017-12-28 | 2017-12-28 | A kind of double row tapered roller bearing for bearing lack of balance load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208534979U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975537A (en) * | 2017-12-28 | 2018-05-01 | 瓦房店轴承集团有限责任公司 | It can bear the double-row conical bearing of lack of balance load |
-
2017
- 2017-12-28 CN CN201721870795.7U patent/CN208534979U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975537A (en) * | 2017-12-28 | 2018-05-01 | 瓦房店轴承集团有限责任公司 | It can bear the double-row conical bearing of lack of balance load |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200520 Address after: 116399 the first section of beigongji street, Wafangdian City, Dalian City, Liaoning Province Patentee after: DALIAN WAZHOU GROUP BEARING EQUIPMENT MAKING Co.,Ltd. Address before: 116300 No. 1, Section 1, North Masonic Street, Dalian, Liaoning, Wafangdian City Co-patentee before: WAFANGDIAN BEARING GROUP NATIONAL BEARING ENGINEERING TECHNOLOGY RESEARCH CENTER Co.,Ltd. Patentee before: WAFANGDIAN BEARING GROUP Co.,Ltd. |