CN216714983U - Tapered roller bearing - Google Patents
Tapered roller bearing Download PDFInfo
- Publication number
- CN216714983U CN216714983U CN202121675762.3U CN202121675762U CN216714983U CN 216714983 U CN216714983 U CN 216714983U CN 202121675762 U CN202121675762 U CN 202121675762U CN 216714983 U CN216714983 U CN 216714983U
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- China
- Prior art keywords
- outer ring
- flange
- bearing
- tapered roller
- inner ring
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- 238000005096 rolling process Methods 0.000 claims abstract description 20
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 6
- 239000010687 lubricating oil Substances 0.000 abstract description 10
- 238000005461 lubrication Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001050 lubricating Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 230000037250 Clearance Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 230000035512 clearance Effects 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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Abstract
The utility model relates to a tapered roller bearing, wherein the outer ring of the bearing is provided with a flange which is positioned on the small end surface of the outer ring, the inner ring is not provided with a large flange and a small flange, a retainer is positioned between the outer ring and the inner ring, a plurality of rolling bodies distributed along the circumferential direction are arranged between the outer ring and the inner ring, and the flange of the outer ring is contacted with the spherical base surface of the rolling bodies. The utility model has the advantages of high rotating speed, low noise, low vibration and long service life, and the flange is designed at the small end surface of the outer ring, so that the bearing can bear axial force, lubricating oil is well prevented from leaking, and the normal lubrication of the bearing is ensured.
Description
Technical Field
The present invention relates to a tapered roller bearing. In particular, the present invention relates to a split bearing with a flange and a retainer.
Background
The tapered roller bearing has a conical inner ring raceway and an outer ring raceway, and tapered rollers are arranged between the conical inner ring raceway and the outer ring raceway, and the design mainly bears radial and axial combined loads mainly taking a radial direction as a main load. The outer ring raceway of the tapered roller bearing is provided with an included angle alpha along the axial direction, the axial load capacity of the bearing is mostly determined by a contact angle alpha, and the larger the alpha angle is, the higher the axial load capacity is.
Tapered roller bearings are divided into single-row, double-row and four-row tapered roller bearings according to the number of rows of rolling elements in the bearing. The single-row tapered roller bearing has an outer ring, an inner ring assembly formed by wrapping an inner ring and a group of tapered rollers by a retainer, the outer ring is separated from the inner ring assembly, the taper angle of a raceway of the outer ring is 10-19 degrees, the single-row tapered roller bearing can simultaneously bear the combined action of axial load and radial load, and the single-row tapered roller bearing can adjust the play in the installation processGapThe size of (2). The outer ring (or the inner ring) of the double-row tapered roller bearing is a whole, the small end faces of the two inner rings (or the outer rings) are close, a space ring is arranged in the middle, the clearance is adjusted by the thickness of the space ring, and the pre-interference of the double-row tapered roller bearing can also be adjusted by the thickness of the space ring. The performance of the four-row tapered roller bearing is basically the same as that of a double-row tapered roller bearing, but the four-row tapered roller bearing bears larger radial load and lower limit rotating speed than the double-row tapered roller bearing, and is mainly used for heavy machinery.
Generally, a tapered roller bearing structure is composed of an outer ring, an inner ring, tapered rollers and a retainer, the retainer is a stamped retainer (as shown in fig. 2) or a strut retainer (as shown in fig. 3), the outer ring has no flange, the inner ring is a double-flange structure, and axial load of the inner ring is borne by the flange of the inner ring, so that the tapered roller bearing structure is widely applied to various mechanical devices such as automobiles, gear boxes, metallurgical rolling mills, engineering machinery, mining machinery, plastic machinery, paper making machinery and the like. The rolling body with the structure has large impact on the end face of the flange of the bearing, causes noise due to vibration, cannot prevent lubricating oil from leaking, and cannot ensure the lubrication of the bearing.
In patent No. ZL2012202349102 entitled "double-row tapered roller bearing with stop flange on outer ring", a tapered roller bearing comprising a bearing outer ring, a bearing inner ring, tapered rollers and a retainer is designed, wherein the number of the tapered rollers is two rows of rollers, the outer ring is provided with the stop flange which is positioned on the outer side of the outer ring and has no contact surface with the tapered rollers, and the outer part of the inner ring is provided with a spacer ring.
In a patent number ZL20182202465.7 entitled tapered roller bearing with an outer ring provided with flanges, the tapered roller bearing comprises an outer ring, a retainer, an inner ring and rollers, wherein the retainer is arranged between the outer ring and the inner ring, and the rollers are arranged in the retainer; an outer ring flange is arranged at the position, close to the small end of the roller, of the outer ring, the outer ring flange is detachably arranged on the outer ring, and the outer ring flange and the outer ring adopt a locking ring and semi-embedded positioning mode; one side of the inner ring close to the large end of the roller is provided with a large flange, and one side of the inner ring close to the small end of the roller is provided with a small flange; the outer diameter of the inner ring is provided with a groove for mounting a small flange, the section of one side of the small flange, which is close to the tapered roller, is angular, one side of the angular is vertically arranged and matched with the groove, and the other side of the angular is obliquely arranged and matched with the end surface of the tapered roller. The tapered roller bearing mainly solves the problem that the tapered roller bearing needs to be fixed in a bearing shell when in use, and under the action of radial and axial combined loads, the tapered roller bearing can easily move axially in the bearing shell, so that the service lives of the bearing and the bearing shell are influenced, and the tapered roller bearing capable of bearing larger axial force is designed.
However, the end face of the rolling element of the tapered roller bearing with the structure still has large impact on the end face of the flange of the bearing, and for working conditions with special application requirements, such as the output end bearing of the gearbox for a railway, the working conditions of the tapered roller bearing have the characteristics of high rotating speed, high-frequency vibration, long service life, long maintenance-free period and easiness in installation and disassembly.
Disclosure of Invention
The utility model aims to provide a tapered roller bearing which is suitable for bearing working conditions of high rotating speed, high-frequency vibration, long service life, long maintenance-free period and easy installation and disassembly.
The technical scheme adopted by the utility model is as follows: a tapered roller bearing characterized in that: the rolling bearing comprises an outer ring 01, an inner ring 02, a plurality of rolling bodies 04 and a retainer 07, wherein the outer ring 01 is provided with a flange which is positioned on the small end surface of the outer ring 01, the inner ring 02 is not provided with a large flange and a small flange, the retainer 07 is positioned between the outer ring 01 and the inner ring 02, the rolling bodies 04 distributed along the circumferential direction are arranged between the outer ring 01 and the inner ring 02, and the flange of the outer ring 01 is in contact with the spherical base surface of the rolling bodies 04.
The tapered roller bearing is characterized in that the retainer 07 is a copper alloy solid retainer.
The tapered roller bearing is characterized in that the inner ring 02 guides the cage 07 to rotate stably.
The tapered roller bearing is characterized in that the size of the inner diameter of the retainer 07 is close to the size of the inner ring 02 matched with the retainer.
The present invention has the following advantageous effects.
1. The structure is an outer ring 01 structure with a flange, and has the advantage of high rotating speed.
2. The structural retainer 07 adopts an aluminum bronze integral design, and improves the lubricating property and the wear resistance of the bearing.
3. The structure is an inner ring 02 guide retainer 07 structure, prevents the heating of the internal stirring of the bearing caused by the fact that a large amount of lubricating oil enters the inside of the bearing, is stable in rotation under the working condition of high-speed operation, and has the characteristics of low noise, low vibration and long service life.
4. When the bearing rotates at a high speed, lubricating oil is thrown to the outer ring 01 raceway due to centrifugal force, the outer ring 01 raceway axially forms an included angle alpha (shown in figure 1), so that the lubricating oil slides along the raceway and leaks out, and at the moment, the flange is designed at the small end face of the outer ring 01, so that the bearing can bear the axial force, the leakage of the lubricating oil is well blocked, and the normal lubrication of the bearing is ensured.
5. When the inner ring 02 and the shaft move axially, the flange is changed on the outer ring 01, so that the impact of the large end face of the rolling body 04 on the bearing flange in the conventional design is reduced.
Drawings
Fig. 1 is a schematic view of a tapered roller bearing structure of the present invention.
Fig. 2 is a schematic view of a prior art tapered roller bearing of a stamped cage construction.
FIG. 3 is a schematic view of a tapered roller bearing of a prior art strut cage construction.
The numbers in the figure indicate: outer ring 01, inner ring 02, rolling elements 04, and cage 07.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, in which it is understood that the embodiments described are only some embodiments of the utility model, and not all embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
One, embodiment.
Referring to fig. 1 to 3, in fig. 1, D is a guide mode, that is, the inner diameter size of the retainer 07 and the size of the inner ring 02 matched with the inner diameter size are relatively close to a position corresponding to a guide condition in the bearing, and C is a rib of the outer ring 01. Flanges are arranged at the positions A and B in the figures 2 and 3.
As shown in fig. 1, the tapered roller bearing comprises an outer ring 01, an inner ring 02, a plurality of rolling bodies 04, and a copper alloy solid retainer 07, wherein the outer ring 01 is provided with a flange which is positioned on the small end surface of the outer ring 01, the inner ring 02 is not provided with a large flange and a small flange, the retainer 07 is positioned between the outer ring 01 and the inner ring 02, the outer ring 01 and the inner ring 02 are internally provided with the plurality of rolling bodies 04 distributed along the circumferential direction, and the flange of the outer ring 01 is in contact with the ball base surface of the rolling bodies 04; the inner ring 02 guides the copper alloy solid retainer 07 to rotate stably, and the inner diameter of the copper alloy solid retainer 07 is close to the size of the inner ring 02 matched with the copper alloy solid retainer.
In the above, the tapered roller bearing has the advantages that the outer ring 01 has a flange structure, so that the tapered roller bearing has the advantage of high rotation speed; secondly, the retainer 07 adopts the integral design of copper alloy, so that the lubricating property and the wear resistance of the bearing are improved; thirdly, the structure is an inner ring 02 guide retainer 07 structure, prevents the stirring and heating inside the bearing caused by the fact that a large amount of lubricating oil enters the inside of the bearing, is stable in rotation under the working condition of high-speed operation, and has the characteristics of low noise, low vibration and long service life. And fourthly, when the bearing rotates at a high speed, the lubricating oil is thrown to the outer ring 01 raceway due to centrifugal force, the lubricating oil slides along the raceway and leaks out due to the fact that the outer ring 01 raceway has an included angle alpha (shown in figure 1) along the axial direction, and at the moment, the bearing can bear the axial force and well blocks the leakage of the lubricating oil due to the fact that the flange is designed at the small end face of the outer ring 01, and normal lubrication of the bearing is guaranteed. Fifthly, when the inner ring 02 and the shaft move axially, the flange is changed on the outer ring 01, so that the impact of the end face of the large end of the roller on the flange of the bearing in the conventional design is reduced.
And II, detecting.
The conical rolling bearing manufactured by the technical scheme has the technical parameter indexes meeting the requirements through experimental detection and has good performance.
Claims (2)
1. A tapered roller bearing characterized in that: the novel rolling bearing comprises an outer ring (01), an inner ring (02), a plurality of rolling bodies (04) and a retainer (07), wherein the outer ring (01) is provided with a flange, the flange is positioned on the small end face of the outer ring (01), the inner ring (02) is not provided with a large flange and a small flange, the retainer (07) is positioned between the outer ring (01) and the inner ring (02), the plurality of rolling bodies (04) distributed in the circumferential direction are contained between the outer ring (01) and the inner ring (02), and the flange of the outer ring (01) is in contact with the spherical base face of the rolling bodies (04).
2. A tapered roller bearing according to claim 1, characterized in that the cage (07) is a copper alloy solid cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121675762.3U CN216714983U (en) | 2021-07-22 | 2021-07-22 | Tapered roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121675762.3U CN216714983U (en) | 2021-07-22 | 2021-07-22 | Tapered roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216714983U true CN216714983U (en) | 2022-06-10 |
Family
ID=81871772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121675762.3U Active CN216714983U (en) | 2021-07-22 | 2021-07-22 | Tapered roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216714983U (en) |
-
2021
- 2021-07-22 CN CN202121675762.3U patent/CN216714983U/en active Active
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