CN219809270U - Sealing angular contact ball bearing for main shaft of aero-engine - Google Patents
Sealing angular contact ball bearing for main shaft of aero-engine Download PDFInfo
- Publication number
- CN219809270U CN219809270U CN202321071718.0U CN202321071718U CN219809270U CN 219809270 U CN219809270 U CN 219809270U CN 202321071718 U CN202321071718 U CN 202321071718U CN 219809270 U CN219809270 U CN 219809270U
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- CN
- China
- Prior art keywords
- peripheral wall
- dustproof
- angular contact
- ball bearing
- contact ball
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- 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.)
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 19
- 230000002093 peripheral effect Effects 0.000 claims abstract description 42
- 239000000428 dust Substances 0.000 claims description 18
- 230000000694 effects Effects 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 6
- 239000010687 lubricating oil Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a sealing angular contact ball bearing for an aero-engine main shaft, which comprises an outer ring, an inner ring and rollers movably arranged between the inner ring and the outer ring, wherein a stop groove is formed in the outer peripheral wall of the outer ring, a dustproof edge extends towards the outer peripheral wall of the inner ring on the inner peripheral wall of the outer ring, the dustproof edge and the stop groove are arranged on the same side, a first notch for partially accommodating the dustproof edge is formed in the outer peripheral wall of the inner ring corresponding to the dustproof edge, a dustproof piece is arranged on the inner peripheral wall of the outer ring, the dustproof piece and the dustproof edge are arranged on two sides of the rollers, and a second notch for sealing in a matched manner with the dustproof piece is formed in the outer peripheral wall of the inner ring.
Description
Technical Field
The utility model relates to the field of bearings, in particular to a sealing angular contact ball bearing for a main shaft of an aero-engine.
Background
The inner ring and the outer ring of the angular contact ball bearing are provided with rollaway nest, and the inner ring and the outer ring can relatively displace along the axial direction of the bearing. Such bearings are particularly suitable for carrying composite loads, i.e. loads acting both radially and axially. The conventional angular contact ball bearing is generally assembled by matching an inner ring, an outer ring, rollers and a retainer, and because the contact mode of the angular contact ball bearing is point contact, friction generated by the bearing during operation is relatively small, the running speed of the bearing is high, for example, chinese patent (application number: 201320622782.3) discloses the angular contact ball bearing, which comprises an inner ring, an outer ring, a ball body, an outer ring channel, an inner ring channel and a retainer, wherein the outer ring channel is arranged on the inner circumference of the outer ring of the bearing, the inner ring channel is arranged on the outer circumference of the inner ring of the bearing, the retainer is arranged between the inner ring and the outer ring of the bearing, the inner side of the retainer is provided with a ball body matched with the outer ring channel and the inner ring channel, the inner circumference of the outer ring of the bearing is provided with a spiral groove, and the spiral groove is provided with a round angle type structure. The bearing has a simple structure, and when the bearing runs, the lubricant can be wound into the spiral groove to form hydrodynamic lubrication;
the above patent discloses an angular contact ball bearing, adopts the fixed ball body of holder in this kind of bearing, but the setting of holder can influence the work efficiency of bearing to a certain extent, and this kind of angular contact ball bearing can not prevent that the bearing inner race from driving the bearing outer lane and rotating under high-speed rotation, and the leakproofness of this bearing is relatively poor, can not prevent that the lubricating oil in the bearing from flowing out.
Disclosure of Invention
Aiming at the defects of the prior art, the sealing angular contact ball bearing for the main shaft of the aero-engine has good sealing performance.
In order to achieve the above purpose, the utility model provides a sealing angular contact ball bearing for a main shaft of an aeroengine, which comprises an outer ring, an inner ring and rollers movably arranged between the inner ring and the outer ring, wherein a stop groove is formed in the outer peripheral wall of the outer ring, a dustproof edge extends towards the outer peripheral wall of the inner ring on the inner peripheral wall of the outer ring, the dustproof edge and the stop groove are arranged on the same side, a first notch for partially accommodating the dustproof edge is formed in the outer peripheral wall of the inner ring corresponding to the dustproof edge, a dustproof piece is arranged on the inner peripheral wall of the outer ring, the dustproof piece and the dustproof edge are arranged on two sides of the rollers, and a second notch for sealing with the dustproof piece in a matched manner is formed in the outer peripheral wall of the inner ring.
The effect that adopts above-mentioned technical scheme can produce is: the outer peripheral wall of the outer ring is provided with a stop groove, the stop groove is a groove for preventing the outer ring from rotating, the stop groove can be clamped with an external shell to prevent the bearing inner ring from driving the bearing outer ring to rotate under high-speed rotation, the dustproof edge extending towards the outer peripheral wall of the inner ring on the inner peripheral wall of the outer ring cannot influence the position of the stop groove on the outer ring, because the position of the stop groove is special, if the existing dustproof edge is arranged on the bearing, the arrangement of the stop groove on the bearing outer ring can be easily influenced, so that the position of the dustproof edge and the position of the stop groove are in conflict, the first breach that sets up on the inner circle peripheral wall is used for local holding dustproof limit and for dustproof limit and first breach sealing connection, the second breach that sets up on the inner circle peripheral wall can be used for holding local dust guard for dust guard and second breach sealing connection, dust guard and dustproof limit set up in the both sides of roller, dust guard and dustproof limit all with the inner circle and the outer lane sealing connection of bearing, thereby can effectively avoid the external dust of bearing to get into the operation of bearing inside from the both sides of bearing, the work efficiency of improvement bearing and the rotational speed of bearing.
The utility model further provides that: the inner peripheral wall of the outer ring is provided with a containing groove, and the dustproof piece comprises a dustproof cover which is connected with the side wall of the containing groove in a sealing way.
The effect that adopts above-mentioned technical scheme can produce is: the holding groove sets up on the outer lane, and the holding groove can be used for holding the dust guard, and the dust guard can block external dust, and the periphery wall of shield is sealed with the holding groove lateral wall for shield one side and the sealed butt of holding groove lateral wall.
The utility model further provides that: the dustproof piece further comprises a clamp spring which is used for being pressed on the dustproof cover, and the clamp spring is matched with the side wall of the accommodating groove to clamp and position the dustproof cover.
The effect that adopts above-mentioned technical scheme can produce is: the clamp spring can be pressed on the dust cover, one side of the clamp spring is abutted against the side wall of the accommodating groove, the other side of the clamp spring is abutted against the dust cover to clamp and position the dust cover, the dust cover can be prevented from being separated from the bearing in the high-speed rotation process of the bearing, and the dust cover can prevent external dust from entering the bearing to affect the bearing.
The utility model further provides that: the outer peripheral wall of the inner ring is provided with an identification groove.
The effect that adopts above-mentioned technical scheme can produce is: the identification groove is arranged on the peripheral wall of the inner ring, and can provide the assembly direction of the bearing when the bearing is assembled, so that errors are avoided during assembly.
The utility model further provides that: and an oil storage tank is formed at the junction of the inner peripheral wall of the outer ring and the dustproof edge.
The effect that adopts above-mentioned technical scheme can produce is: the oil storage tank is arranged on the outer ring, and can discharge lubricating oil when the bearing runs at a high speed, and the oil storage tank can collect the lubricating oil discharged from the bearing.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of the present utility model;
FIG. 2 is an exploded view of an embodiment of the present utility model;
FIG. 3 is a perspective view of an embodiment of the present utility model;
Detailed Description
The utility model relates to an embodiment of a sealing angular contact ball bearing for an aeroengine main shaft, which is shown in figures 1-3, and comprises an outer ring 1, an inner ring 2 and rollers 3 movably arranged between the inner ring 2 and the outer ring 1, wherein a stop groove 4 is formed in the outer peripheral wall of the outer ring 1, a dust-proof edge 5 extends towards the outer peripheral wall of the inner ring 2 on the inner peripheral wall of the outer ring 1, the dust-proof edge 5 is arranged on the same side as the stop groove 4, a first notch 7 for partially accommodating the dust-proof edge 5 is formed in the outer peripheral wall of the inner ring 2 corresponding to the dust-proof edge 5, a dust-proof piece is arranged on the inner peripheral wall of the outer ring 1, the dust-proof piece and the dust-proof edge 5 are arranged on two sides of the rollers 3, a second notch 8 for sealing with the dust-proof piece is arranged on the outer peripheral wall of the inner ring 2, the stop groove 4 is a groove for preventing the outer ring 1 from rotating, the inner ring 2 can be clamped with an external shell to prevent the inner ring 2 from rotating at a high speed, and the position of the stop groove 4 is special, and if the position of the stop groove 4 is adopted, the dust-proof edge 5 is arranged on the outer peripheral wall of the inner ring 2 and is in a position corresponding to the dust-proof edge 5, and is arranged on the outer ring 2, and is in contact with the second notch 2, and the second notch 8 is used for sealing the dust-proof edge 5 and the dust-proof edge is arranged on the outer ring 2; the inner peripheral wall of the outer ring 1 is provided with a containing groove 9, the dustproof piece comprises a dustproof cover 11 which is in sealing connection with the side wall of the containing groove 9, the containing groove 9 is arranged on the outer ring 1, the containing groove 9 can be used for containing the dustproof piece, the dustproof piece can block dust outside, and the outer peripheral wall of the dustproof cover 11 is in sealing abutting connection with the side wall of the containing groove 9; the dust-proof piece further comprises a clamp spring 12 which is used for being pressed on the dust-proof cover 11, the clamp spring 12 is matched with the side wall of the accommodating groove 9 to clamp and position the dust-proof cover 11, the clamp spring 12 can be pressed on the dust-proof cover 11, one side of the clamp spring 12 is abutted with the side wall of the accommodating groove 9, and the other side is abutted with the dust-proof cover 11 to clamp and position the dust-proof cover 11; the outer peripheral wall of the inner ring 2 is provided with an identification groove 10, the identification groove 10 is arranged on the outer peripheral wall of the inner ring 2, and when the bearing is assembled, the identification groove 10 can provide the assembly direction of the bearing, so that errors in assembly are avoided; the juncture of the inner peripheral wall of the outer ring 1 and the dustproof edge 5 forms an oil storage tank 6, the oil storage tank 6 is arranged on the outer ring 1, lubricating oil can be discharged when the bearing runs at a high speed, and the oil storage tank 6 can collect the lubricating oil discharged from the bearing.
While the basic principles and main features of the present utility model and advantages of the present utility model have been shown and described, it will be understood by those skilled in the art that the present utility model is not limited by the foregoing embodiments, which are described in the foregoing specification merely illustrate the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a sealed angular contact ball bearing for aeroengine main shaft which characterized in that: including outer lane, inner circle and activity setting are provided with the stop groove on the outer lane peripheral wall between inner circle and outer lane, it has dustproof limit to extend towards outer lane peripheral wall direction on the outer lane inner peripheral wall, dustproof limit and stop groove homonymy set up, correspond dustproof limit position on the inner circle peripheral wall and seted up the first breach that supplies dustproof limit local holding, be provided with the dust guard on the outer lane inner peripheral wall, dust guard and dustproof limit reside in the roller both sides, be provided with on the inner circle peripheral wall and be used for with the sealed second breach of dust guard cooperation.
2. The sealed angular contact ball bearing for an aircraft engine main shaft of claim 1, wherein: the inner peripheral wall of the outer ring is provided with a containing groove, and the dustproof piece comprises a dustproof cover which is connected with the side wall of the containing groove in a sealing way.
3. The sealed angular contact ball bearing for an aircraft engine main shaft of claim 2, wherein: the dustproof piece further comprises a clamp spring which is used for being pressed on the dustproof cover, and the clamp spring is matched with the side wall of the accommodating groove to clamp and position the dustproof cover.
4. The sealed angular contact ball bearing for an aircraft engine main shaft of claim 1, wherein: the outer peripheral wall of the inner ring is provided with an identification groove.
5. The sealed angular contact ball bearing for an aircraft engine main shaft of claim 1, wherein: and an oil storage tank is formed at the junction of the inner peripheral wall of the outer ring and the dustproof edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321071718.0U CN219809270U (en) | 2023-05-05 | 2023-05-05 | Sealing angular contact ball bearing for main shaft of aero-engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321071718.0U CN219809270U (en) | 2023-05-05 | 2023-05-05 | Sealing angular contact ball bearing for main shaft of aero-engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219809270U true CN219809270U (en) | 2023-10-10 |
Family
ID=88212529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321071718.0U Active CN219809270U (en) | 2023-05-05 | 2023-05-05 | Sealing angular contact ball bearing for main shaft of aero-engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219809270U (en) |
-
2023
- 2023-05-05 CN CN202321071718.0U patent/CN219809270U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |