CN202194728U - Accessory case transmission and aircraft engine with same - Google Patents
Accessory case transmission and aircraft engine with same Download PDFInfo
- Publication number
- CN202194728U CN202194728U CN2011202693285U CN201120269328U CN202194728U CN 202194728 U CN202194728 U CN 202194728U CN 2011202693285 U CN2011202693285 U CN 2011202693285U CN 201120269328 U CN201120269328 U CN 201120269328U CN 202194728 U CN202194728 U CN 202194728U
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- CN
- China
- Prior art keywords
- bearing
- support block
- bearing support
- accessory case
- case transmission
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Abstract
The utility model provides an accessory case transmission and an aircraft engine with same. The accessory case transmission comprises: a shaft, a bearing sleeved on the shaft, and a bearing support seat for containing the bearing. The accessory case transmission is contained in a receiver; the receiver also comprises a lubricating nipple; and a plurality of through holes that penetrate through the bearing support seat are arranged on the side wall of the bearing support seat, wherein at least one through hole aligns the outlet end of the lubricating nipple. Assistant parts required by the accessory case transmission for fixing the bearing are fewer, the stability of the transmission system is high, the lubricating system is simple, and the accessory case transmission is easy to maintain.
Description
Technical field
The utility model relates to the aeroengine field, especially, relates to a kind of accessory case transmission device, and in addition, the utility model also relates to a kind of aeroengine that comprises above-mentioned accessory case transmission device.
Background technique
The accessory drive gear case is responsible for the accessory case transmission power to the aviation turboshaft engine.Bearing block plays a part to support and the position rotating axle in the engine gear transmission.Bevel gear in the engine gear is driven through the axle that is attached thereto, for prevent axle in transmission process because bear axially, radial force, and produce axial motion, conventional pattern is established bearing on the axle, with back shaft.When axle is long, a plurality of bearings need be set.When using bearing,, need between each bearing to install at interval for preventing the mutual wearing and tearing of bearing inner race.And the required location of each bearing and fixedly auxiliary component is more when installing.Increased the global instability of transmission system.For anti-lubricating oil leaks to outside the casing, used bearing lubrication system is complicated simultaneously, and this has increased the difficulty of maintenance.
The model utility content
The utility model purpose is to provide a kind of accessory case transmission device and has its aeroengine, and too much to solve the required auxiliary component of bearing support block, the stability of a system is poor, lubricating system complicated technology problem.
For realizing above-mentioned purpose; An aspect according to the utility model provides a kind of accessory case transmission device, comprising: axle, be sheathed on bearing on the axle, accommodate the bearing support block of bearing; The accessory case transmission device is contained in the casing; Casing also comprises nipple, and the bearing support block sidewall is provided with a plurality of through holes that connect bearing support block, and wherein at least one through hole aligns with the outlet end of nipple.
Further, bearing comprise each other against the clutch shaft bearing and second bearing, the abutted surface of first, second bearing of through hole alignment.
Further, the inwall of bearing support block is provided with groove, and groove is communicated with through hole.
Further, bearing support block is cylinder type, and first end of bearing support block radially extends stopping dam in tube, and first end of clutch shaft bearing is connected in stopping dam.
Further, bearing support block also comprises the baffle plate of second end that is fixedly connected on bearing support block, and the baffle plate apical grafting is in second end of second bearing.
Further, the outer wall of first end of bearing support block also is provided with protruding tube, and the sidewall of protruding tube is provided with along the sealed groove that circumferentially connects protruding tube, and the sealed groove internal fixation is accommodated Sealing.
Further, bearing support block is made of aluminum, and the bearings base inner surface is provided with wearing layer, and the inwall cylindricity of bearing support block is 0.005mm.
Further, an end of axle is installed with bevel gear through nut.
Further, the end of bevel gear extends the sleeve pipe of cartridge type vertically, and first, second bearing housing is located on the sleeve pipe, and sleeve pipe and bevel gear connecting part are provided with the backstop groove, and first end of clutch shaft bearing is connected on the backstop groove.
According to the utility model on the other hand, a kind of aeroengine is provided also, it comprises above-mentioned accessory case transmission device.
The utlity model has following beneficial effect:
The required rigid bearing auxiliary component of the accessory case transmission device that the utility model provides is less, and transmission system stability is high, and lubricating system is simple, and is easy to maintenance.
Except top described purpose, feature and advantage, the utility model also has other purpose, feature and advantage.To do further detailed explanation to the utility model with reference to figure below.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is that schematic representation cuts open in the master office of looking of the utility model preferred embodiment accessory case transmission device.
The dash number explanation:
1 bearing support block, 11 stopping dams, 12 flanges, 13 protruding tube 14 grooves 2 Sealings
21 sealed grooves, 31 clutch shaft bearings, 32 second bearings, 4 baffle plates, 5 bevel gears
78 groove 9 through holes of 51 backstop grooves, 53 sleeve pipes, 6 nuts.
Embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Referring to Fig. 1; In the utility model preferred embodiment, the accessory case transmission device comprise axle 7, through nut 6 be fixedly connected on an axle end of 7 bevel gear 5, be sheathed on the clutch shaft bearing 31 and second bearing 32 on the axle 7, accommodate the bearing support block 1 of fixedly clutch shaft bearing 31 and second bearing 32 and be fixedly connected on the baffle plate 4 of bearing support block 1.
Bearing support block 1 is cylindric, and the madial wall of first end of bearing support block 1 is provided with the stopping dam 11 that radially extends internally.Stopping dam 11 distributes along the periphery of the inwall of bearing support block 1.First end of the outer ring of clutch shaft bearing 31 is connected in stopping dam 11, and first end of second end of the outer ring of clutch shaft bearing 31 and the outer ring of second bearing 32 joins.The clutch shaft bearing 31 and second bearing 32 pile up placement can increase the support area to axle 7, improves the running stability of axle 7.The outer wall of second end of bearing support block 1 stretches out and forms flange 12.
Another opposite end of bevel gear 5 is extended the sleeve pipe 53 of a cartridge type vertically.First, second bearing 31,32 all is socketed on sleeve pipe 53.The external diameter of sleeve pipe 53 is less than the diameter of bevel gear 5, and in being provided with blocked part 51 with bevel gear 5 connecting parts.Stopping dam 11 horizontal alignments of blocked part 51 and bearing support block 1, first end of the outer ring of stopping dam 11 backstop clutch shaft bearings 31.
The first distolateral wall of bearing support block 1 forms protruding tube 13 along circumferential outer thickening.The sidewall of protruding tube 13 is provided with along the sealed groove 21 that circumferentially connects protruding tube 13.Sealing 2 is dissolved in the sealed groove 21.When casing was installed, casing inwall corresponding position was provided with groove and cooperates with protruding tube.Thereby the protruding tube in bearing support block 1 outside 13 is sealed with the bottom.In the present embodiment, used Sealing 2 is the fluororubber O-type Stamping Steel Ribbon.Snap in Sealing 2 in the sealed groove 21 in the bearing support block 1 first end outside, casing is that cylindrical shape can fit tightly with protruding tube 13, and the side protrusion groove 21 of Sealing 2 is connected to the casing inwall, realizes sealing.
The below of the sealed groove 21 of the outer side wall of bearing support block 1 is provided with the groove 14 of circumferential perforation bearing support block 1.The madial wall of bearing support block 1 be provided with one with groove 14 groove opposite 8.The bottom land of groove 14 is provided with the through hole 9 that connects bearing support block 1 sidewall.Through hole 9 is communicated with groove 8.2 above-mentioned through holes 9 are set on the whole bearing support block 1 at least.Lubricating oil is sprayed in the bearing support block 1, lubricated back lubricating oil flows out through another through hole 9 outlet end of the lubricating oil nozzle on the casing over against one of them through hole 9.In the present embodiment, through hole 9 aligns with clutch shaft bearing 31 and second bearing, 32 abutted surfaces.
Nipple on the casing sprays in the bearing support block 1 lubricating oil with lubricated first and second bearings 31,32 over against through hole 9.But the pressure difference in the casing can be disturbed the flow direction of lubricating oil, makes the part lubricating oil be exposed to bearing support block 1 outer wall and can not flow in the bearing support block 1.And the protruding tube in the outside of bearing support block 1 13 bottoms have been sealed by Sealing 2 at this moment, thereby lubricating oil can only get in the bearing support blocks 1 through through hole 9.
Because the clutch shaft bearing 31 and second bearing 32 join, inner ring wearing and tearing each other during operation.For reducing wear, increase gets into the amount of the lubricating oil in the bearing support block 1 and groove 8 is set.Excessive lubricating oil can be dissolved in earlier in the groove 8, with the running of first, second bearing 31,32, and the lubricating oil in the groove 8, also lubricated with the motion of first, second bearing 31,32 along circumferentially getting in first, second bearing 31,32.Afterwards lubricating oil can only be in the ring of an end of bearing support block 1, ring-like baffle plate 4 and another through hole 9 flow out bearing support blocks 1, pass back into casing.In other embodiments, through hole 9 can be provided with a plurality of.
Bearing support block 1 is processed by lightweight metal material.To alleviate the transmission system overall weight.In the present embodiment, bearing support block 1 is made of aluminum.For strengthening the hardness of aluminium, prevent wearing and tearing, bearing support block 1 inwall obtains along the wearing layer of inwall distribution through the hard anodized processing method.For preventing that alignment error from making soft aluminium matter bearing support block 1 stress deformation, bearing support block 1 inwall obtains higher cylindricity through highly finish grinding simultaneously.In the present embodiment, cylindricity reaches 0.005mm, and hard anodized is handled the high hard formation thickness of gained and reached 50 μ m.
Baffle plate 4 is circular shape is fixedly connected on bearing support block 1 second end through fastening piece flange 12.Baffle plate 4 is with after bearing support block 1 is fixedly connected, and an end apical grafting of baffle plate 4 is in second end of second bearing 32.In the present embodiment, baffle plate 4 outsides are provided with flange and are fixedly connected through nut with the flange of second end of bearing support block 1 12.Through baffle plate 4 and stopping dam 11 first, second bearing 31,32 is connected in the bearing support block 1.The clutch shaft bearing 31 and second bearing 32 join and realize the location through baffle plate 4 and the stopping dam 11 in the bearing support block 1; Reduce bearing and located required auxiliary component amount; And then having alleviated the motor overall weight, the transmission device that makes the utility model provide satisfies the needs of aviation field.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. accessory case transmission device; Comprise: axle (7), be sheathed on bearing on the said axle (7), accommodate the bearing support block (1) of said bearing; Said accessory case transmission device is contained in the casing, and said casing also comprises nipple, it is characterized in that; Said bearing support block (1) sidewall is provided with a plurality of through holes (9) that connect said bearing support block (1), and wherein at least one said through hole (9) aligns with the outlet end of said nipple.
2. accessory case transmission device according to claim 1 is characterized in that, said bearing comprise each other against clutch shaft bearing (31) and second bearing (32), the align abutted surface of said first, second bearing (31,32) of said through hole (9).
3. accessory case transmission device according to claim 2 is characterized in that, the inwall of said bearing support block (1) is provided with groove (8), and said groove (8) is communicated with said through hole (9).
4. accessory case transmission device according to claim 3; It is characterized in that; Said bearing support block (1) is cylinder type, and first end of said bearing support block (1) radially extends stopping dam (11) in tube, and first end of said clutch shaft bearing (31) is connected in said stopping dam (11).
5. accessory case transmission device according to claim 4 is characterized in that, said bearing support block (1) also comprises the baffle plate (4) of second end that is fixedly connected on said bearing support block (1), and said baffle plate (4) apical grafting is in second end of said second bearing (32).
6. accessory case transmission device according to claim 5; It is characterized in that; The outer wall of first end of said bearing support block (1) also is provided with protruding tube (13); The sidewall of said protruding tube (13) is provided with along the sealed groove (21) that circumferentially connects said protruding tube (13), and said sealed groove (21) internal fixation is accommodated Sealing (2).
7. accessory case transmission device according to claim 6 is characterized in that, said bearing support block (1) is made of aluminum, and said bearing support block (1) internal surface is provided with wearing layer, and the inwall cylindricity of said bearing support block (1) is 0.005mm.
8. accessory case transmission device according to claim 7 is characterized in that, an end of said axle (7) is installed with bevel gear (5) through nut (6).
9. accessory case transmission device according to claim 8; It is characterized in that; The end of said bevel gear (5) extends the sleeve pipe (53) of cartridge type vertically; Said first, second bearing (31,32) is sheathed on the said sleeve pipe (53), and said sleeve pipe (53) is provided with backstop groove (51) with said bevel gear (5) connecting part, and first end of said clutch shaft bearing (31) is connected on the said backstop groove (51).
10. an aeroengine is characterized in that, said motor includes each described accessory case transmission device in the claim 1～9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202693285U CN202194728U (en) | 2011-07-27 | 2011-07-27 | Accessory case transmission and aircraft engine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202693285U CN202194728U (en) | 2011-07-27 | 2011-07-27 | Accessory case transmission and aircraft engine with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194728U true CN202194728U (en) | 2012-04-18 |
Family
ID=45949644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202693285U Expired - Lifetime CN202194728U (en) | 2011-07-27 | 2011-07-27 | Accessory case transmission and aircraft engine with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194728U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269059A (en) * | 2011-07-27 | 2011-12-07 | 中国航空动力机械研究所 | Accessory case transmission device and aircraft engine comprising same |
| CN109630275A (en) * | 2018-12-03 | 2019-04-16 | 北京动力机械研究所 | A kind of compact-sized drive bearing lubricating oil supply structure |
-
2011
- 2011-07-27 CN CN2011202693285U patent/CN202194728U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269059A (en) * | 2011-07-27 | 2011-12-07 | 中国航空动力机械研究所 | Accessory case transmission device and aircraft engine comprising same |
| CN102269059B (en) * | 2011-07-27 | 2013-12-25 | 中国航空动力机械研究所 | Accessory case transmission device and aircraft engine comprising same |
| CN109630275A (en) * | 2018-12-03 | 2019-04-16 | 北京动力机械研究所 | A kind of compact-sized drive bearing lubricating oil supply structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120418 |
|
| CX01 | Expiry of patent term |