CN203189518U - Conical roller bearing - Google Patents
Conical roller bearing Download PDFInfo
- Publication number
- CN203189518U CN203189518U CN 201320229115 CN201320229115U CN203189518U CN 203189518 U CN203189518 U CN 203189518U CN 201320229115 CN201320229115 CN 201320229115 CN 201320229115 U CN201320229115 U CN 201320229115U CN 203189518 U CN203189518 U CN 203189518U
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- CN
- China
- Prior art keywords
- roller
- inner ring
- outer ring
- radius
- ring
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- Expired - Fee Related
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a conical roller bearing, comprising an inner ring, an outer ring, rollers and a holder, wherein the holder is arranged between the inner ring and the outer ring; the rollers are embedded into the holder and are arranged between a roller path of the outer ring and a roller path of the inner ring; the outer surfaces of the rollers, contacted with the inner ring and the outer ring, are in convex spherical surface structures; the roller path of the outer ring and the roller path of the inner ring are in concave spherical surface structures; the radius of the roller path of the outer ring is 1.01-1.08 times that of the spherical surface structure of the outer surface of each roller; and the radius of the roller path of the inner ring is 1.01-1.08 times that of the spherical surface structure of the outer surface of each roller. By using the conical roller bearing, the deflection generated after a shaft is stressed can be effectively compensated, the problems of machining errors and concentrated stress existing when part shafts or holes are matched can be solved, noises can be reduced, and after the rollers deflect, the rollers can be automatically adjusted to a normal operation state.
Description
Technical field
The utility model relates to a kind of tapered roller bearing.
Background technique
Tapered roller bearing is a kind of of rolling bearing, and its performance is to bear thrust load and radial load.Along with the increase of the wrapping angle of roller and inner ring or outer ring, its axial carrying capacity also increases thereupon, and radially bearing capacity reduces thereupon.
In actual applications, owing to the axle that matches with bearing or reasons such as the machining accuracy in hole, installation precision, and the stressed back of axle produces certain degree of disturbing, the axis of its inner ring and outer ring produces certain angle when making tapered roller bearing work, cause this bearing cisco unity malfunction, early failue occurs.
In addition, produce the situation that edge stress is concentrated behind the stand under load, generally all the working surface of the roller of tapered roller bearing, inner ring, outer ring is carried out the convexity design.In order to guarantee desirable running, require the axially-extending line of its inner ring raceway, the axially-extending line of outer ring raceway, the axially-extending line of roller working surface and the axis of lasso to meet at a bit (being called for short " four lines meet at a bit ") during design.But it is domestic owing to be subject to processing the restriction of ability at present, convexity is difficult to reach the effect of desired design, always exist be uneven, deflection etc. situation, four lines meet at and a bit are difficult to reach, cause bearing when reality is used, situations such as noise, early failue occur.
The model utility content
For this reason, technical problem to be solved in the utility model provides a kind of tapered roller bearing with aligning, to overcome the deficiency that prior art exists.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of tapered roller bearing, comprise inner ring, the outer ring, roller and retainer, be provided with described retainer between described inner ring and the described outer ring, described roller embed described retainer and be arranged on the raceway of described outer ring and the raceway of described inner ring between, it is characterized in that: described roller is the spheric structure of evagination with the outer surface that described inner ring contacts with described outer ring, described outer ring raceway and described inner ring raceway are the spheric structure of indent, the radius of described outer ring raceway is 1.01～1.08 times of radius of described roller outer surface spheric structure, and the radius of the raceway of described inner ring is 1.01～1.08 times of radius of described roller outer surface spheric structure.
Further, the radius of described outer ring raceway is 1.04 times of radius of described roller outer surface spheric structure, and the radius of the raceway of described inner ring is 1.04 times of radius of described roller outer surface spheric structure.
Adopt technique scheme, inner ring raceway and outer ring raceway all adopt the indent spheric structure, and the working surface of roller adopts the evagination spheric structure, makes inner ring and outer ring have aligning, effectively the degree of disturbing of compensating shaft stressed back generation has solved mating parts axle or hole and has had problems such as machining error; Simultaneously, also having solved original straight line type (band convexity) processes improper and problem that cause stress to be concentrated.
Roller employing evagination spheric structure has solved four lines and has been difficult to meet at any and causes turning round problem undesirable and then the generation noise.Simultaneously, because roller adopts the evagination spheric structure, after roller produces deflection, can be adjusted to normal running state automatically.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is elaborated:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of inner ring;
Fig. 3 is the structural representation of roller;
Fig. 4 is the structural representation of outer ring.
Among the figure:
The 1-inner ring, 2-outer ring, 3-roller, 4-retainer.
Embodiment
As shown in the figure, a kind of tapered roller bearing comprises inner ring 1, outer ring 2, roller 3 and retainer 4, is provided with retainer 4 between inner ring 1 and the outer ring 2, roller 3 embed retainers 4 and be arranged on the raceway of outer ring 1 and the raceway of inner ring 2 between.Roller 3 is the spheric structure of evagination with the outer surface that inner ring 1 contacts with outer ring 2, and its radius is R.Outer ring 2 raceways are the spheric structure of indent, and its radius is Re.Inner ring 1 raceway is the spheric structure of indent, and its radius is Ri.Wherein, the ratio of the spherical radius Re of outer ring 2 raceways and the spherical diameter 2R of roller 3 is 0.52, and namely Re is 1.04 times of R; The ratio of the spherical radius Ri of inner ring 2 raceways and the spherical diameter 2R of roller 3 is 0.52, and namely Ri is 1.04 times of R.
Inner ring raceway and outer ring raceway all adopt the indent spheric structure, the working surface of roller adopts the evagination spheric structure, make inner ring and outer ring have aligning, effectively the degree of disturbing of compensating shaft stressed back generation has solved mating parts axle or hole and has had problems such as machining error; Simultaneously, also having solved original straight line type (band convexity) processes improper and problem that cause stress to be concentrated.
Roller employing evagination spheric structure has solved four lines and has been difficult to meet at any and causes turning round problem undesirable and then the generation noise.Simultaneously, because roller adopts the evagination spheric structure, after roller produces deflection, can be adjusted to normal running state automatically.
But, those of ordinary skill in the art will be appreciated that, above embodiment illustrates the utility model, and be not to be used as restriction of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model the above embodiment's variation, modification.
Claims (2)
1. tapered roller bearing, comprise inner ring, the outer ring, roller and retainer, be provided with described retainer between described inner ring and the described outer ring, described roller embed described retainer and be arranged on the raceway of described outer ring and the raceway of described inner ring between, it is characterized in that: described roller is the spheric structure of evagination with the outer surface that described inner ring contacts with described outer ring, described outer ring raceway and described inner ring raceway are the spheric structure of indent, the radius of described outer ring raceway is 1.01～1.08 times of radius of described roller outer surface spheric structure, and the radius of the raceway of described inner ring is 1.01～1.08 times of radius of described roller outer surface spheric structure.
2. tapered roller bearing according to claim 1, it is characterized in that: the radius of described outer ring raceway is 1.04 times of radius of described roller outer surface spheric structure, and the radius of the raceway of described inner ring is 1.04 times of radius of described roller outer surface spheric structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320229115 CN203189518U (en) | 2013-04-28 | 2013-04-28 | Conical roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320229115 CN203189518U (en) | 2013-04-28 | 2013-04-28 | Conical roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203189518U true CN203189518U (en) | 2013-09-11 |
Family
ID=49106379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320229115 Expired - Fee Related CN203189518U (en) | 2013-04-28 | 2013-04-28 | Conical roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203189518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023123587A1 (en) * | 2021-12-28 | 2023-07-06 | 郭宏军 | Angular contact self-aligning roller bearing |
-
2013
- 2013-04-28 CN CN 201320229115 patent/CN203189518U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023123587A1 (en) * | 2021-12-28 | 2023-07-06 | 郭宏军 | Angular contact self-aligning roller bearing |
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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: 20130911 Termination date: 20190428 |