CN202851681U - Bearing supporting device - Google Patents
Bearing supporting device Download PDFInfo
- Publication number
- CN202851681U CN202851681U CN201220445139.3U CN201220445139U CN202851681U CN 202851681 U CN202851681 U CN 202851681U CN 201220445139 U CN201220445139 U CN 201220445139U CN 202851681 U CN202851681 U CN 202851681U
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- bearing
- supporting device
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- bearing supporting
- mounting base
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Abstract
The utility model provides a bearing supporting device. The bearing supporting device comprises a sleeve type bearing mounting base, wherein the bearing mounting base comprises a bearing mounting part, a sealing part and an axial limiting part positioned between the bearing mounting part and the sealing part, and an oil jet lubrication part is arranged on the axial limiting part. According to the bearing supporting device, the bearing mounting part, the sealing part and the oil jet lubrication part are integrated on the bearing mounting base, so that the number of parts can be reduced, the reliability can be improved, the structure is more compact, the axial and radial sizes can be effectively decreased, and the assembling and disassembling are more convenient due to reduction of the parts.
Description
Technical field
The utility model relates to the bearings field of tool, in particular to a kind of bearing supporting device.
Background technique
Rotor-support-foundation system is the core component of gas turbine engine, aeroperformance, operating life and the use safety of its functional reliability direct relation motor.The gas turbine engine rotor all is supported in the casing with rolling bearing, and the various loads of engine rotor are delivered on the motor load housing by bearing and support member.Bearing support structure is the benchmark of engine rotor and stator shaft orientation location, and special main thrust ball bearing structure often integrates the reference for installation of design basis, reference for assembling and the motor of motor, is the core of the overall load-carrying construction of motor.Therefore, how to guarantee supporting structure intensity, rigidity, structure stability, supporting damping and bearing lubrication, cool off, obturage, heat insulation etc. most important to the use safety of motor.Supporting structure comprises bearing, bearing mounting base, carry out cooling and lubrication to bearing lubricating oil for oil-returning structure, prevent that bleed air-flow path and high pressure-temperature gas of lubricating oil from scurrying into the structures such as the densification device of bearing chamber and Bearing Casing, heat screen.
At present, gas turbine stiffness rotor bearing support structure institute employing technology is consistent substantially, mainly by bearing mounting base, radially pin, bearing internal external lining, distance ring, locking nut, locked spacer, disc, obturating piston ring, the structures such as comb tooth, lube pipe, lubricating oil nozzle of obturaging form.Bearing is contained in bearing mounting base or lining the inside, and inside and outside ring compresses with distance ring respectively, and with locking nut locking, locked spacer is used for preventing nut loosening, and radially pin is used for guaranteeing that some part circumferentially rotates.Then load onto successively disc, obturating piston ring, axially obturage comb tooth and the comb tooth of radially obturaging.The lube pipe system layout is in bearing bore, and as the case may be, what have is arranged in the bearing mounting base body, and the then use that has is the lubricating oil nozzle pipeline independently.Lubricating oil nozzle along bearing uniform several, ring or retainer in the spout alignment bearings are to arrive good lubrication and cooling effect.
But also there are some shortcomings in bearing support structure of the prior art, and part is more as existing bearing support structure, and size is larger, and causes the quality of rotor-support-foundation system obviously to increase the weight of; And because accessory size is larger, and cause the quantity and size also relative increase of densification device, axial 2 to 3 road obturating piston rings and the comb tooth of obturaging of adopting radially uses the long comb tooth of obturaging, and this has all further increased the axial and radial dimension of bearing support structure; In addition, oil system is complicated, and is special in the supporting structure that lube pipe independently is provided, and the design oil supply structure makes total more complicated separately, has also increased design difficulty, has reduced assembling capacity; Difficulty and workload when more part and complicated structure and disposable circumferential locking pin have also increased bearing support structure assembling and maintenance.
The model utility content
The utility model aims to provide that amount of parts is few, the bearing supporting device of compact structure, to solve existing many, the baroque problems of bearing support structure Components.
The utility model provides a kind of bearing supporting device, comprises the bearing mounting base that is sleeve-shaped, and bearing mounting base comprises the bearing assembly department, obturage section and the axial limiting section between the two, has oil jet lubrication section in the axial limiting section.
Further, be equipped with bearing sleeve in the bearing assembly department, the first end of bearing sleeve and axial limiting section butt axial limiting.
Further, have the ring-type defining flange in the axial limiting section, be provided with circumferential restraining groove on the ring-type defining flange, the first end of bearing sleeve has the circumferential locating stud that cooperates with circumferential restraining groove.
Further, also be provided with the nut with the second end butt of bearing sleeve on the bearing assembly department, the end of bearing mounting base is provided with the stopping device that prevents nut loosening.
Further, obturage and be equipped with the graphite seal assembly in the section; Have the restriction protrusion, the end of graphite seal assembly and a plurality of restriction protrusion butt that circumferentially distribute with a plurality of edges in the axial limiting section.
Further, oil jet lubrication section comprises the end that is arranged at least one restriction protrusion in a plurality of restriction protrusion, and forms the nozzle opening of lubricating oil nozzle, and restriction protrusion inside has and the lubricating oil duct that is communicated with nozzle opening and outside lubrication duct.
Further, nozzle opening comprises towards the first nozzle opening of bearing assembly department with towards the second nozzle opening of the section of obturaging.
Further, the end of the section of obturaging has the annular slot that cooperates the sealing of formation comb tooth with the comb tooth on the impeller, is coated with the graphite asbestos layer on the sidewall of annular slot.
Further, obturage and also be provided with the seal groove that seal ring is installed on the outer circumferential face of section.
Further, have the collar flange that cooperates with casing on the outer circumferential side of bearing mounting base, be provided with positioning hole and mounting hole on the collar flange.
According to bearing supporting device of the present utility model, by make the bearing assembly department, obturage section and oil jet lubrication section all be integrated on the bearing mounting base, thereby minimizing amount of parts, improve reliability, make more compact structure, effectively reduce axial and radial dimension, component reduce also makes installation and removal more convenient.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the mounting structure schematic representation according to bearing supporting device of the present utility model;
Fig. 2 is the first cross-sectional schematic vertically according to bearing supporting device of the present utility model;
Fig. 3 is the second cross-sectional schematic vertically according to bearing supporting device of the present utility model;
Fig. 4 is the partial enlarged drawing at label I place among Fig. 3;
Fig. 5 is the axial arrangement schematic representation according to bearing supporting device of the present utility model;
Fig. 6 a is the structural representation according to the bearing sleeve of bearing supporting device of the present utility model;
Fig. 6 b is the partial enlarged drawing at label II place among Fig. 6 a;
Fig. 7 is the structural representation according to the stopping device of bearing supporting device of the present utility model; And
Fig. 8 is the structural representation according to the graphite seal assembly of bearing supporting device of the present utility model.
Embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
As shown in Figures 1 to 3, according to a kind of bearing supporting device of the present utility model, comprise the bearing mounting base 1 that is sleeve-shaped, bearing mounting base 1 comprises bearing assembly department 10, obturage section 20 and the axial limiting section 30 between the two, has oil jet lubrication section 40 in the axial limiting section 30.Bearing supporting device of the present utility model, by make bearing assembly department 10, obturage section 20 and oil jet lubrication section 40 all be integrated on the bearing mounting base 1, thereby minimizing amount of parts, improve reliability, make more compact structure, effectively reduce axial and radial dimension, component reduce also makes installation and removal more convenient.
Be that bearing props up the framework of accepting that takes up such as Fig. 2 and Fig. 3 bearing mounting base 1, be equipped with bearing sleeve 11 in the bearing assembly department 10, the first end of bearing sleeve 11 and axial limiting section 30 butt axial limitings, thus play the effect of axially locating.The outer circumferential face of bearing sleeve 11 cooperates with the inner peripheral surface of bearing mounting base 1, thereby plays the effect of radial centering.
Preferably, shown in Fig. 5 and Fig. 6 a, 6b, has ring-type defining flange 31 in the axial limiting section 30, the first end of bearing sleeve 11 is connected on the end face of ring-type defining flange 31, be provided with circumferential restraining groove 31a on the ring-type defining flange 31, the first end of bearing sleeve 11 has the circumferential locating stud 11a that cooperates with circumferential restraining groove 31a, during installation, circumferential locating stud 11a on the bearing sleeve 11 snaps among the circumferential restraining groove 31a, thereby prevents that bearing sleeve 11 from rotating relative to bearing mounting base 1.
Bearing is packed in the bearing village cover 11, and the outer circumferential face of outer race cooperates with the inner peripheral surface of bearing sleeve 11, thereby plays the effect of radial centering.The end face of the inner peripheral surface of bearing mounting base 1, bearing sleeve 11 first ends with and outer circumferential face degree of finish higher, the end face of the second end of bearing sleeve, the surface finishment of inner peripheral surface are higher, thereby guarantee bearing sleeve 11 and good axially locating and the radial centering of bearing.
As shown in Figure 2, the bearing bearing village cover 11 of packing into is screwed into nut 12 at bearing assembly department 10, thereby compresses the second end of bearing sleeve 11, makes bearing sleeve 11 axial restraints, and is loosening in order to prevent nut 12, is provided with the nut stopping device.With a plurality of grooves, be used for frock assembling and the circumferential location of large round nut on the ear end face of nut 12.As shown in Figure 7, a limiting stopper 13 that inserts the ear end face groove is mainly adopted in the circumferential stop of nut 12, and fastening with hex screw 15, and hex screw 15 uses dihedral lock washer with tongue at outside 14 locking, thereby prevent that effectively nut 12 is loosening, improve the reliability of bearing sleeve 11 axially locating.
As shown in Figure 2, obturage and be equipped with graphite seal assembly 21 in the section 20; Has the restriction protrusion 32 that circumferentially distributes with a plurality of edges in the axial limiting section 30, the end of graphite seal assembly 21 and a plurality of restriction protrusion 32 butts, thereby make graphite seal assembly 21 axially locating, after graphite seal assembly 21 is installed in the section of obturaging 20, bend the to the inside thin wall circular of bearing mounting base front end, thereby with 21 lockings of graphite seal assembly.
Preferably, graphite seal assembly 21 adopts concrete disclosed a kind of graphite seal device among the Chinese patent 201220085327.X, as shown in Figure 8, graphite seal assembly 21 comprises seal sleeve, end face spring, locking pressure plate, graphite flake spring assembly, graphite body seat etc.Wherein the graphite flake spring assembly comprises circular arc graphite flake 21a, bracelet-shaped spring 21b, and the combination of graphite body seat comprises graphite body seat, axial pin, radial peg.3 circular arc graphite flake 21a in the combination of graphite seal ring are packed together to a complete closed ring by bracelet-shaped spring 21b, all Sealings all are assembled in the seal sleeve, form an inseparable assembly, be pressed in the support, the front-end face of graphite annulus is being pressed on the flange of seal sleeve under the effect of wavy spring 21c, plays the effect of end face seal.The inner ring of graphite annulus is coupled with the disc outer ring under the clamping force of bracelet-shaped spring 21b, plays the motive sealing effect.During work, the inner ring of graphite annulus has relative friction cooperating with the disc outer ring, and after the graphite wearing and tearing, graphite has the radial regulation of trace under the effect of bracelet-shaped spring, to guarantee to obturage effect.
As shown in Figure 3 and Figure 4, form lubricating cavity between a plurality of restriction protrusion 32, oil jet lubrication section 40 comprises the end that is arranged at least one restriction protrusion in a plurality of restriction protrusion 32, and the nozzle opening 41 of formation lubricating oil nozzle, restriction protrusion inside has and the lubricating oil duct 42 that is communicated with nozzle opening and outside lubrication duct.The oil system pipeline that is bearing supporting device is distributed in its inside.As shown in Figure 5, according to the utility model embodiment more preferably, restriction protrusion 32 is 3, and with long nozzle projection that is set in 3 restriction protrusion 32, namely at aperture of nozzle projection inner part drilling, then the end face in projection bores respectively one towards the first nozzle opening 41a and second a nozzle opening 41b towards the section of obturaging 20 of bearing assembly department 10, thereby respectively to bearing assembly department 10 and section's 20 oil spouts of obturaging, the chargeoil that sprays to bearing assembly department 10 is used for the lubrication and cooling bearing, and the chargeoil that sprays to the section of obturaging 20 is used for the graphite annulus in the lubrication and cooling graphite seal assembly 21.Lubricating oil after lubricated drop to lubricating cavity below, the lubricating oil oil outlet below lubricating cavity flows out, and drops to the accessory gearbox bottom, joins in the gas turbine engine oil system circulatory system.
As shown in Figure 3, the obturage end of section 20 has with comb tooth on the impeller 60 and cooperates the annular slot 22 that forms the sealing of comb tooth, be coated with graphite asbestos layer 22a on the sidewall of annular slot 22, after bearing supporting device is installed, comb tooth on the impeller 60 cooperates with annular slot 22, thereby make comb tooth and graphite asbestos layer form the labyrinth gas seals structure, play the effect of gas seal.
As shown in Figure 3, also be provided with seal groove 23 on the outer circumferential face of the section 20 of obturaging, O type rubber ring is packed in this groove, cooperates compression with casing 70 inner headed faces, plays the effect of oil gas sealing.
As shown in Figure 5, has the collar flange 50 that cooperates with casing 70 on the outer circumferential side of bearing mounting base 1, be provided with three positioning hole and seven screws with angle property lock washer with the pin location on the collar flange 50 and be installed on the casing 70, transmit the various load of gas turbine engine rotor-support-foundation system.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
According to bearing supporting device of the present utility model, by make the bearing assembly department, obturage section and oil jet lubrication section all be integrated on the bearing mounting base, thereby minimizing amount of parts, improve reliability, make more compact structure, effectively reduce axial and radial dimension, component reduce also makes installation and removal more convenient.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. bearing supporting device, comprise the bearing mounting base (1) that is sleeve-shaped, it is characterized in that, described bearing mounting base (1) comprises bearing assembly department (10), the section of obturaging (20) and the axial limiting section (30) between the two, has oil jet lubrication section (40) in the described axial limiting section (30).
2. bearing supporting device according to claim 1 is characterized in that,
Be equipped with bearing sleeve (11) in the described bearing assembly department (10), the first end of described bearing sleeve (11) and described axial limiting section (30) butt axial limiting.
3. bearing supporting device according to claim 2 is characterized in that,
Has ring-type defining flange (31) in the described axial limiting section (30), be provided with circumferential restraining groove (31a) on the described ring-type defining flange (31), the first end of described bearing sleeve (11) has the circumferential locating stud (11a) that cooperates with circumferential restraining groove (31a).
4. bearing supporting device according to claim 3 is characterized in that,
Also be provided with the nut (12) with the second end butt of described bearing sleeve (11) on the described bearing assembly department (10), the end of described bearing mounting base (1) is provided with the stopping device that prevents described nut loosening.
5. bearing supporting device according to claim 1 is characterized in that,
Be equipped with graphite seal assembly (21) in the described section of obturaging (20);
Have the restriction protrusion (32), the end of described graphite seal assembly (21) and a plurality of described restriction protrusion (32) butt that circumferentially distribute with a plurality of edges in the described axial limiting section (30).
6. bearing supporting device according to claim 5 is characterized in that,
Described oil jet lubrication section (40) comprises the end that is arranged at least one restriction protrusion in a plurality of described restriction protrusion (32), and the nozzle opening (41) of formation lubricating oil nozzle, described restriction protrusion inside has and the lubricating oil duct (42) that is communicated with described nozzle opening and outside lubrication duct.
7. bearing supporting device according to claim 6 is characterized in that,
Described nozzle opening (41) comprises towards first nozzle opening (41a) of described bearing assembly department (10) with towards second nozzle opening (41b) of the described section of obturaging (20).
8. bearing supporting device according to claim 5 is characterized in that,
The end of the described section of obturaging (20) has the annular slot (22) that cooperates the sealing of formation comb tooth with the comb tooth on the impeller (60), is coated with graphite asbestos layer (22a) on the sidewall of described annular slot (22).
9. bearing supporting device according to claim 5 is characterized in that,
Also be provided with the seal groove (23) that seal ring is installed on the outer circumferential face of the described section of obturaging (20).
10. bearing supporting device according to claim 1 is characterized in that,
Have the collar flange (50) that cooperates with casing (70) on the outer circumferential side of described bearing mounting base (1), described collar flange is provided with positioning hole and mounting hole on (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220445139.3U CN202851681U (en) | 2012-09-03 | 2012-09-03 | Bearing supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220445139.3U CN202851681U (en) | 2012-09-03 | 2012-09-03 | Bearing supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851681U true CN202851681U (en) | 2013-04-03 |
Family
ID=47982887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220445139.3U Expired - Lifetime CN202851681U (en) | 2012-09-03 | 2012-09-03 | Bearing supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851681U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422859A (en) * | 2014-09-17 | 2016-03-23 | 贵州航空发动机研究所 | Transmission shaft head end face sealing device |
| CN112483650A (en) * | 2020-10-27 | 2021-03-12 | 中国船舶重工集团公司第七0三研究所 | Radial support and oil cavity seal of gas compressor |
| CN113090572A (en) * | 2021-05-10 | 2021-07-09 | 中国航发湖南动力机械研究所 | Integrated multi-functional bearing outer sleeve |
| CN114483801A (en) * | 2022-01-29 | 2022-05-13 | 中国航发湖南动力机械研究所 | Common-cavity type aero-engine bearing seat and aero-engine with same |
-
2012
- 2012-09-03 CN CN201220445139.3U patent/CN202851681U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422859A (en) * | 2014-09-17 | 2016-03-23 | 贵州航空发动机研究所 | Transmission shaft head end face sealing device |
| CN112483650A (en) * | 2020-10-27 | 2021-03-12 | 中国船舶重工集团公司第七0三研究所 | Radial support and oil cavity seal of gas compressor |
| CN113090572A (en) * | 2021-05-10 | 2021-07-09 | 中国航发湖南动力机械研究所 | Integrated multi-functional bearing outer sleeve |
| CN114483801A (en) * | 2022-01-29 | 2022-05-13 | 中国航发湖南动力机械研究所 | Common-cavity type aero-engine bearing seat and aero-engine with same |
| CN114483801B (en) * | 2022-01-29 | 2022-12-09 | 中国航发湖南动力机械研究所 | Common-cavity type aero-engine bearing seat and aero-engine with same |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |