CN104047965B - Bearing holder (housing, cover) - Google Patents

Bearing holder (housing, cover) Download PDF

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Publication number
CN104047965B
CN104047965B CN201410097366.5A CN201410097366A CN104047965B CN 104047965 B CN104047965 B CN 104047965B CN 201410097366 A CN201410097366 A CN 201410097366A CN 104047965 B CN104047965 B CN 104047965B
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China
Prior art keywords
housing
cover
bearing holder
inch
range
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Active
Application number
CN201410097366.5A
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Chinese (zh)
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CN104047965A (en
Inventor
S.E.罗森
R.M.斯特鲁齐亚克
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HAMMILLTONSONDESTLAND Inc
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HAMMILLTONSONDESTLAND Inc
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Priority to US201361788328P priority Critical
Priority to US61/788328 priority
Priority to US13/873811 priority
Priority to US13/873,811 priority patent/US9028149B2/en
Application filed by HAMMILLTONSONDESTLAND Inc filed Critical HAMMILLTONSONDESTLAND Inc
Publication of CN104047965A publication Critical patent/CN104047965A/en
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Publication of CN104047965B publication Critical patent/CN104047965B/en
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Abstract

Disclose a kind of bearing holder (housing, cover) for being used to support the axle of air cycle machine.The bearing holder (housing, cover) includes external diameter and internal diameter.The external diameter is in the range of 3.222 inches and 3.224 inches.The also included paillon foil holding chamber being provided in the internal diameter of the set.The paillon foil holding chamber includes slit and the hold to axial first and second openings positioned at the slit.The fraction and major part that each include with axially different length in first and second opening.The ratio of the most combination axial length and the axial length of the paillon foil holding chamber is in .19: 1 and .22: in the range of 1.

Description

Bearing holder (housing, cover)
Background of invention
The application is related to bearing holder (housing, cover), and is more particularly to used for the bearing holder (housing, cover) of air cycle machine (ACM).
ACM is known and including compressed air and transmits air for downstream use (such as aircraft air supply system) Compressor.A part for air from compressor outlet passes through turbine rotor, so as to drive turbine rotor to rotate.ACM can Including several rotary shafts by air bearings support.A kind of air bearing of known type includes the paper tinsel group supported by bearing holder (housing, cover) Part.
Brief summary of the invention
In an exemplary of the disclosure, including it is configured to support the bearing of the axle of air cycle machine Set.Bearing holder (housing, cover) includes external diameter and internal diameter.External diameter is in the range of 3.222 inches and 3.224 inches.It is also included to be provided in set Internal diameter in paillon foil holding chamber.Paillon foil holding chamber includes slit and opened positioned at hold to axial the first and second of slit Mouthful.The fraction and major part that each include with axially different length in first and second openings.Most combination The ratio of axial length and the axial length of paillon foil holding chamber is in .19: 1 and .22: in the range of 1.
In any of the above described other embodiments, the scope of the ratio of external diameter and internal diameter 1.143: 1 and 1.144: 1 It is interior.
In any of the above described other embodiments, each of major part of the first and second openings has .265 inches With the axial length in .305 inch ranges.
In any of the above described other embodiments, each of fractions of the first and second openings have .12 inch with .16 the axial length in inch range.
In any of the above described other embodiments, each of major part of the first and second openings has .215 inches Measured with the width in .225 inch ranges, its center line relative to slit.
In any of the above described other embodiments, each of fraction of the first and second openings has .065 inches Measured with the width in .075 inch ranges, its center line relative to slit.
In any of the above described other embodiments, paillon foil holding chamber has in 2.795 inches and 2.805 inch ranges Length.
In any of the above described other embodiments, bearing holder (housing, cover) have line shaft in 3.33 inches and 3.35 inch ranges to Length.
In any of the above described other embodiments, slit has the width in .041 inches and .047 inch ranges.
Another exemplary of the disclosure includes the air cycle machine with bearing holder (housing, cover).Bearing holder (housing, cover) includes external diameter And internal diameter.External diameter is in the range of 3.222 inches and 3.224 inches.The also included paillon foil being provided in the internal diameter of set is protected Hold chamber.Paillon foil holding chamber includes slit and the hold to axial first and second openings positioned at slit.First and second openings In the fraction and major part that each include with axially different length.Most combination axial length is kept with paillon foil The ratio of the axial length of chamber is in .19: 1 and .22: in the range of 1.
In any of the above described other embodiments, air cycle machine include paper tinsel component, paper tinsel component include bent portion and The fin of its axial end.
In any of the above described other embodiments, bent portion is contained in slit, and wherein fin is contained in first In the major part of the second opening.
In any of the above described other embodiments, air cycle machine includes bearing holder (housing, cover) being supported in air cycle machine At least one O-ring in central opening, O-ring is directly engaged with the external diameter of bearing holder (housing, cover).
In any of the above described other embodiments, the scope of the ratio of external diameter and internal diameter 1.143: 1 and 1.145: 1 It is interior.
In any of the above described other embodiments, each of major part of the first and second openings has .265 inches With the axial length in .305 inch ranges.
In any of the above described other embodiments, each of fractions of the first and second openings have .12 inch with .16 the axial length in inch range.
In any of the above described other embodiments, each of major part of the first and second openings has .215 inches Measured with the width in .225 inch ranges, its center line relative to slit.
In any of the above described other embodiments, each of fraction of the first and second openings has .065 inches Measured with the width in .075 inch ranges, its center line relative to slit.
In any of the above described other embodiments, paillon foil holding chamber has in 2.795 inches and 2.805 inch ranges Length.
In any of the above described other embodiments, bearing holder (housing, cover) have line shaft in 3.33 inches and 3.35 inch ranges to Length.
Brief description
Can DESCRIPTION OF DRAWINGSFigure as follows:
Fig. 1 schematically illustrates example air circulator (ACM).
Fig. 2 shows the cross-sectional view of exemplary shaft bearing sleeve.
Fig. 3 is the view along Fig. 2 line A-A interceptions.
Fig. 4 is the view along Fig. 3 line B-B interceptions.
Embodiment
Fig. 1 schematically illustrates the air including fan or compressor section 12, turbine portion 14 and at least one axle 16 and followed Ring machine (ACM) 10.Axle 16 is supported by bearing assembly 18, and the bearing assembly includes bearing holder (housing, cover) 20, paillon foil component 22 and O-ring 24.Paillon foil component 22 is circumferentially located in bearing holder (housing, cover) 20.Paillon foil component 22 is configured to the axle that interacts and allow with axle 16 16 rotations, as known in the art.Bearing holder (housing, cover) 20 is supported in ACM10 central opening by way of O-ring 24.
Fig. 2 shows the cross-sectional view of exemplary shaft bearing sleeve 20.In one embodiment, exemplary shaft bearing sleeve 20 is positioned adjacent to ACM10 fan section 12.Bearing holder (housing, cover) 20 includes outer diameter D 1, internal diameter D2 and crosses over axial length L 1.Paillon foil component 22 is by setting The mode for putting the paillon foil holding chamber F in the internal diameter of bearing holder (housing, cover) 20 is supported by bearing holder (housing, cover) 20.In the present embodiment, bearing holder (housing, cover) 20 Axial length L 1 is in the range of 3.33 inches and 3.35 inches (about 8.458cm to 8.509cm).In addition, paillon foil holding chamber has There is the total length L 2 in the range of 2.795 inches and 2.805 inches (about 7.099cm to 7.125cm).
The outer diameter D 1 of bearing holder (housing, cover) 20 is selected to provide the required preload relative to O-ring 24.The preload is chosen So that bearing holder (housing, cover) 20 will be kept in place in operation, and provide ACM10 required buffer level.For example, preload is got over Height, the buffering in ACM10 operating process is also higher.
In one embodiment, outer diameter D 1 is in 3.222 inches and 3.224 inches (about 8.184cm to 8.188cm) scopes It is interior.The D1 provides relatively high-caliber buffering for ACM, while ensuring that bearing holder (housing, cover) 20 is kept in place in operation.At this In individual embodiment, outer diameter D 1 and internal diameter D2 ratio is in the range of 1.143: 1 and 1.145: 1.
As shown in Fig. 3 (it is the view along Fig. 2 line A-A interceptions), paillon foil holding chamber F includes slit 26 and slit 26 To axial end on first and second opening 28,30.In one embodiment, opening 28,30 each includes major part A, and relative small portion B.Most of A has axial length L 3, and smaller portions B has relatively small axial length L4.
In this embodiment, each major part A has .265 inches and .305 inches (about .673cm to .775cm) In the range of axial length L 3, its be selected as corresponding to paillon foil component 22 fin 34 length (Fig. 4).Smaller portions L4's Length is in the range of .12 inches and .16 inches (about .305cm to .406cm).
In this embodiment, the line shaft of most of L3 combination axial length (for example, 2 × L3) and paillon foil holding chamber L2 To the ratio of length in .19: 1 and .22: in the range of 1.The ratio and the paper tinsel for being interacted with the fin of paillon foil component 22 Total length of the piece holding chamber F length (for example, 2 × L3) relative to paillon foil holding chamber L2 is related.And this is only an implementation Example, many sizes disclosed herein are to be mutually related and therefore can effectively be expressed in terms of ratio.
Fig. 4 is the view along Fig. 3 line B-B interceptions, and shows the mode that wherein paillon foil component 22 is kept by paillon foil chamber F. Paillon foil component 22 includes along its length being received into the bent portion 32 in slit 26.Slit 26 has to accommodate bent portion Width W1.In one embodiment, width W1 is in the range of .041 inches and .047 inches (about .104cm to .120cm). Slit 26 also includes the radius 26R of its bottom, and wherein slit 26 sets the internal diameter to bearing holder (housing, cover) 20 in order to machining Broken edge 26B.
Paillon foil component 22 also includes the fin 34 on each of which axial end.Fin 34 is configured to be contained in paillon foil holding chamber First and second opening 28,30 most of A in.Fin 34 has the axial direction of the axial length L 3 corresponding to major part A long Degree
Fig. 4 also illustrates big and fraction A, B the width of opening 28,30.In this embodiment, most of A has .215 the width W2 in the range of inch and .225 inches (about .546cm to .575cm), and fraction B have .065 inches and .075 the width W3 in the range of inch (about .165cm to .191cm), the wherein center line of each of W2 and W3 relative to slit 26 And measure.
In one embodiment, bearing holder (housing, cover) 20 is formed from steel by way of electron discharge processes (EDM) process.In this reality Apply in example, paillon foil holding chamber F is formed during EDM.After using EDM processes formation paillon foil holding chamber F, internal diameter D2 is entered One step processes to provide required preload on paillon foil component 22.That is, the size of internal diameter D2 is chosen to by appropriate amount Power paillon foil component 22 is engaged axle 16 so that paillon foil component 22 will be kept in place in operation, while still allow axle 16 from By rotating.There is following benefit in the post-processing internal diameter of EDM processes:Remove any residue (example left after EDM processes Such as burr) and prevent any warpage of bearing holder (housing, cover) 20.
Present disclose provides the bearing holder (housing, cover) interacted with paillon foil component, and O-ring, to provide appropriate preload, this It is related to ACM buffering and the support of paillon foil component and other benefits.
Although be the same as Example does not have the particular elements shown in figure, the embodiment of the disclosure is not limited to these spies Fixed combination.It is possible to the feature or component combination in some parts or feature in one embodiment and another embodiment Use.
It should be appreciated by those skilled in the art that embodiment described above is exemplary and nonrestrictive. That is, modification of this disclosure is also in the range of present claims.Therefore, claim above should be studied to determine Its real scope and content.

Claims (15)

1. a kind of bearing holder (housing, cover) for being used to support the axle of air cycle machine, it includes:
External diameter and internal diameter, wherein the external diameter is in the range of 3.222 inches to 3.224 inches;With
The paillon foil holding chamber in the internal diameter is arranged on, the paillon foil holding chamber includes slit and the relative axle positioned at the slit To first and second openings at end, the fraction with axially different length is each included in first and second opening And major part, wherein the ratio of the most combination axial length and total axial length of the paillon foil holding chamber exists 0.19:1 to 0.22:In the range of 1.
2. bearing holder (housing, cover) as claimed in claim 1, wherein the ratio of the external diameter and the internal diameter is 1.143:1 to 1.145:1 In the range of.
3. bearing holder (housing, cover) as claimed in claim 1, wherein each of described major part of first and second opening has Axial length in 0.265 inch to 0.305 inch range.
4. bearing holder (housing, cover) as claimed in claim 1, wherein each of described fraction of first and second opening has Axial length in 0.12 inch to 0.16 inch range.
5. bearing holder (housing, cover) as claimed in claim 1, wherein each of described major part of first and second opening has Width in 0.215 inch to 0.225 inch range, its center line relative to the slit and measure.
6. bearing holder (housing, cover) as claimed in claim 1, wherein each of described fraction of first and second opening has Width in 0.065 inch to 0.075 inch range, its center line relative to the slit and measure.
7. bearing holder (housing, cover) as claimed in claim 1, wherein the paillon foil holding chamber has 2.795 inches to 2.805 inch ranges Interior length.
8. bearing holder (housing, cover) as claimed in claim 1, wherein the bearing holder (housing, cover) is with total in 3.33 inches to 3.35 inch ranges Axial length.
9. bearing holder (housing, cover) as claimed in claim 1, wherein the slit has the width in 0.041 inch to 0.047 inch range Degree.
10. a kind of air cycle machine, it includes:
Bearing holder (housing, cover), the bearing holder (housing, cover) includes external diameter and internal diameter, wherein scope of the external diameter at 3.222 inches to 3.224 inches Interior, the bearing holder (housing, cover) also includes the paillon foil holding chamber being arranged in the internal diameter, and the paillon foil holding chamber includes slit and is located at Each including with difference in the hold to axial first and second openings of the slit, first and second opening The fraction and major part of axial length, wherein the line shaft of most combination axial length and the paillon foil holding chamber to The ratio of length is 0.19:1 to 0.22:In the range of 1.
11. air cycle machine as claimed in claim 10, it includes paper tinsel component, and the paper tinsel component includes bent portion and its axle To the fin at end.
12. air cycle machine as claimed in claim 11, wherein the bent portion is contained in the slit, and wherein institute Fin is stated to be contained in the major part of first and second opening.
13. air cycle machine as claimed in claim 10, it includes the bearing holder (housing, cover) being supported in the air cycle machine Central opening at least one O-ring, the O-ring directly engages with the external diameter of the bearing holder (housing, cover).
14. air cycle machine as claimed in claim 10, wherein the ratio of the external diameter and the internal diameter is 1.143:1 to 1.145:In the range of 1.
15. air cycle machine as claimed in claim 10, wherein each of described major part of first and second opening With the axial length in 0.265 inch to 0.305 inch range.
CN201410097366.5A 2013-03-15 2014-03-14 Bearing holder (housing, cover) Active CN104047965B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US201361788328P true 2013-03-15 2013-03-15
US61/788328 2013-03-15
US13/873811 2013-04-30
US13/873,811 US9028149B2 (en) 2013-03-15 2013-04-30 Bearing sleeve

Publications (2)

Publication Number Publication Date
CN104047965A CN104047965A (en) 2014-09-17
CN104047965B true CN104047965B (en) 2017-09-22

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Application Number Title Priority Date Filing Date
CN201410097366.5A Active CN104047965B (en) 2013-03-15 2014-03-14 Bearing holder (housing, cover)

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4701060A (en) * 1986-07-24 1987-10-20 The Garrett Corporation Foil journal bearing cooling
CN100451366C (en) * 2007-01-08 2009-01-14 哈尔滨工业大学 Self-regulating type hydrodynamic gas elastic foil bearing
US7648279B2 (en) * 2007-04-12 2010-01-19 Hamilton Sundstrand Corporation Journal air bearing
KR101068542B1 (en) * 2009-08-31 2011-09-28 주식회사 뉴로스 Journal foil air bearing
CN101839281B (en) * 2010-05-27 2012-07-11 西安交通大学 Foil dynamical pressure radial gas bearing provided with sectionally-combined composite support
CN102943813B (en) * 2012-11-19 2014-12-10 湖南大学 Radial foil piece gas bearing with windowing type bulged support foil piece

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