CN205331232U - A oily structure of asymmetric holder receipts for aeroengine base bearing - Google Patents
A oily structure of asymmetric holder receipts for aeroengine base bearing Download PDFInfo
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- CN205331232U CN205331232U CN201520833552.0U CN201520833552U CN205331232U CN 205331232 U CN205331232 U CN 205331232U CN 201520833552 U CN201520833552 U CN 201520833552U CN 205331232 U CN205331232 U CN 205331232U
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- bearing
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- oil
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Abstract
The utility model relates to an oily structure of asymmetric holder receipts for aeroengine base bearing, include: cyclic annular holder, cyclic annular holder setting is between bearing inner ring and outer loop, and the internal surface that bearing inner ring is close to holder one side is provided with annular bulge, forms the oil collecting tank structure, the degree of depth of oil collecting tank structure oil groove be 1~2mm, cyclic annular holder be whole alloy steel structure, the outside has the silvered film. Beneficial effect does: be applied to aeroengine owner bearing retainer, be favorable to increasing the receipts oil efficiency of bearing, improve the lubrication and cooling effect of bearing, improve bearing life, reduce the bearing fault rate, promote the bearing operational reliability, and then improve engine reliability.
Description
Technical field:
This utility model relates to bearing arrangement technical field, is specifically related to a kind of asymmetric retainer for aeroplane engine main bearing and receives oil structure。
Background technology:
Base bearing primarily serves in aero-engine and supports and the effect of guiding, and is determined for the relative motion position of axial workpiece and other parts, and the quality of its performance directly influences the performance of aero-engine drive system。Rolling bearing is the ingredient that aero-engine machine driven system is important, is mainly made up of inside race, outer collar, rolling element and retainer four part。The overall performance of bearing is had very big impact by the retainer as one of Bearing inner main element, bearing lubrication effect is had a significant impact by bearing cage structure, another critical function of retainer is then receive oil, lubricating oil is made to enter Bearing inner, playing lubrication effect, retainer is received oil mode and is just decide the receipts oil efficiency of bearing。
At present, domestic air mail main bearing of engine structural design level rests on 20th century 70, the eighties more, first according to the diameter of axle bearing mount portion position calculation bearing inner and outer ring and width, carry out the optimization design of internal structure again, and the retainer being designed to according to this thinking often adopts copper or steel as matrix material, electroplate, symmetrical structure, seldom the concrete structure according to bearing assembly, designs the retainer meeting construction features。Wherein, a class retainer does not possess receipts oiliness energy, receives oil poor effect in other words, it is easy to cause that the lubrication effect of bearing is bad, cause bearing to break down, and then cause engine failure。And another kind of retainer possesses receipts oiliness energy, it is symmetrical structure, it is adaptable to fuel system under ring, but when bearing assembly is side spray lubrication, cannot ensureing retainer intensity because of structure restriction, above two retainer structure all has significant limitation when using。
Add up from fault data, overwhelming majority main bearing of engine failure problems, all do not received oil efficiency by bearing good and cause that lubrication is bad and cause。Therefore, improve the receipts oil efficiency of base bearing, become the major parameter, the particularly design of retainer structure of design bearing, also become the most important thing in design bearing。
Utility model content:
The purpose of this utility model is to provide a kind of asymmetric retainer for aeroplane engine main bearing and receives oil structure, can increase substantially the lubrication effect of bearing, improve bearing service life, reduce bearing fault rate, promote bearing functional reliability, and then improve engine reliability。
For achieving the above object, this utility model is by the following technical solutions:
A kind of asymmetric retainer for aeroplane engine main bearing that this utility model provides receives oil structure, including: ring-type retainer, described ring-type retainer is arranged between bearing inner ring and outer shroud, retainer only side is provided with annular projection close to the inner surface of bearing inner ring, form collection tank structure, and retainer is provided with the side width of collection tank structure more than the side being not provided with collection tank structure。
The degree of depth of described collection tank structure oil groove is 1～2mm。
Described ring-type retainer is Integral alloy steel construction, outside with silver coating。
The beneficial effects of the utility model: be applied to aeroplane engine main bearing retainer, are conducive to increasing the receipts oil efficiency of bearing, improve the lubrication effect of bearing, improve bearing service life, reduce bearing fault rate, promote bearing functional reliability, and then improve engine reliability。
Accompanying drawing illustrates:
Fig. 1 is the bearing partial structurtes schematic diagram use that the asymmetric retainer for aeroplane engine main bearing receives oil structure。
Fig. 2 is the structural representation of the asymmetric retainer receipts oil structure in aeroplane engine main bearing。
1-ring-type retainer, 2-internal ring, 3-outer shroud, 4-annular projection, 5-collection tank structure。
Detailed description of the invention:
Below in conjunction with embodiment, the utility model is described in further detail。
According to Fig. 1～Fig. 2, a kind of asymmetric retainer for aeroplane engine main bearing receives oil structure, including: ring-type retainer 1, described ring-type retainer 1 is arranged between bearing inner ring 2 and outer shroud 3, ring-type retainer 1 only side is provided with annular projection 4 close to the inner surface of bearing inner ring 2, form collection tank structure 5, and retainer is provided with the side width of collection tank structure more than the side being not provided with collection tank structure。
The degree of depth d of described collection tank 5 structure oil groove1It is 1～2mm。
Described ring-type retainer 1 is Integral alloy steel construction, outside with silver coating。
For a kind of engine bearing, this bearing adopts side spray lubrication, lubricating oil sprays from the lubricating oil nozzle of side, under centrifugal action, along the axial opposite side flowing of driving gear, bearing is sprayed to by the aperture on flow deflector, owing to flow deflector is in high speed rotating state, under centrifugal action, the spill port spraying lubricating oil side from bearing from the lubricating oil overwhelming majority of nozzle ejection runs off, only sub-fraction lubricating oil enters the opposite side of bearing, cause that bearing lubrication cooling is bad, cause bearing fault rate higher, asymmetric retainer is adopted to receive oil structure, retainer side has receipts oil structure, when bearing normal operation, lubricating oil is after a side nozzle ejection, it is directly entered inside retainer, increase and receive oil efficiency, improve lubrication effect。
Finally should be noted that: above example is only in order to illustrate that the technical solution of the utility model is not intended to limit, although this utility model being described in detail with reference to above-described embodiment, those of ordinary skill in the field are it is understood that still can modify to detailed description of the invention of the present utility model or equivalent replacement, and without departing from any amendment of this utility model spirit and scope or equivalent replace, it all should be encompassed in the middle of present claims scope。
Claims (3)
1. the asymmetric retainer for aeroplane engine main bearing receives oil structure, it is characterized in that: including: ring-type retainer, described ring-type retainer is arranged between bearing inner ring and outer shroud, retainer only side is provided with annular projection close to the inner surface of bearing inner ring, form collection tank structure, and retainer is provided with the side width of collection tank structure more than the side being not provided with collection tank structure。
2. a kind of asymmetric retainer for aeroplane engine main bearing according to claim 1 receives oil structure, it is characterised in that: the degree of depth of described collection tank structure oil groove is 1～2mm。
3. a kind of asymmetric retainer for aeroplane engine main bearing according to claim 1 receives oil structure, it is characterised in that: described ring-type retainer is Integral alloy steel construction, outside with silver coating。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833552.0U CN205331232U (en) | 2015-10-26 | 2015-10-26 | A oily structure of asymmetric holder receipts for aeroengine base bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833552.0U CN205331232U (en) | 2015-10-26 | 2015-10-26 | A oily structure of asymmetric holder receipts for aeroengine base bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205331232U true CN205331232U (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520833552.0U Active CN205331232U (en) | 2015-10-26 | 2015-10-26 | A oily structure of asymmetric holder receipts for aeroengine base bearing |
Country Status (1)
| Country | Link |
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| CN (1) | CN205331232U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167336A (en) * | 2017-12-27 | 2018-06-15 | 中国航发哈尔滨轴承有限公司 | One kind is for Aero-engine Bearing and receives oil ring connection structure |
-
2015
- 2015-10-26 CN CN201520833552.0U patent/CN205331232U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167336A (en) * | 2017-12-27 | 2018-06-15 | 中国航发哈尔滨轴承有限公司 | One kind is for Aero-engine Bearing and receives oil ring connection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City |
|
| CP01 | Change in the name or title of a patent holder |