CN108730330A - The method of adjustment of compliant foil air bearing and its rigidity and damping - Google Patents

The method of adjustment of compliant foil air bearing and its rigidity and damping Download PDF

Info

Publication number
CN108730330A
CN108730330A CN201810901604.1A CN201810901604A CN108730330A CN 108730330 A CN108730330 A CN 108730330A CN 201810901604 A CN201810901604 A CN 201810901604A CN 108730330 A CN108730330 A CN 108730330A
Authority
CN
China
Prior art keywords
foil
compliant foil
compliant
bearing
assembly set
Prior art date
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.)
Granted
Application number
CN201810901604.1A
Other languages
Chinese (zh)
Other versions
CN108730330B (en
Inventor
刘江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Rui Deep Aviation Technology Co Ltd
Original Assignee
Beijing Rui Deep Aviation Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Rui Deep Aviation Technology Co Ltd filed Critical Beijing Rui Deep Aviation Technology Co Ltd
Priority to CN201810901604.1A priority Critical patent/CN108730330B/en
Publication of CN108730330A publication Critical patent/CN108730330A/en
Application granted granted Critical
Publication of CN108730330B publication Critical patent/CN108730330B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00Sliding-contact bearings for exclusively rotary movement
    • F16C17/02Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/024Sliding-contact bearings for exclusively rotary movement for radial load only with flexible leaves to create hydrodynamic wedge, e.g. radial foil bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C27/00Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/02Sliding-contact bearings

Abstract

The invention belongs to air bearing technology field more particularly to the methods of adjustment of a kind of compliant foil air bearing and its rigidity and damping.The bearing includes bearing block, support component and flat foil, flat foil coaxial package is in bearing block, support component is assemblied between bearing block peace foil, support component includes assembly set and multiple compliant foils, assembly is set on the inner wall of bearing block, multiple compliant foils are arranged on the inner wall of assembly set, and flat foil is supported by multiple compliant foils.The present invention is by adjusting the width of compliant foil, density, thickness and combination, then is assembled in assembly covers, you can realizes the rigidity of compliant foil air bearing and the adjustment of damping.The present invention can shorten its R&D cycle, and reduce manufacturing cost.

Description

The method of adjustment of compliant foil air bearing and its rigidity and damping
Technical field
The invention belongs to air bearing technology field more particularly to a kind of compliant foil air bearing and its rigidity and resistances The method of adjustment of Buddhist nun.
Background technology
Compliant foil air bearing is a kind of novel elastic bearing self-acting air bearing, and Fig. 1 is the elasticity of the prior art The structural schematic diagram of foil air bearing, referring to Fig. 1, the compliant foil air bearing include bearing block 1, support component 2 and Flat foil 3,3 coaxial package of flat foil is in bearing block 1, and support component 2 is assemblied between 1 peace foil 3 of bearing block, and 4 activity of shaft is set It sets in flat foil 3.
With the rotation of shaft, it is squeezed into the gap between flat foil 3 and shaft 4 with the air of shaft contacts, when shaft 4 After reaching certain rotating speed, gas dynamic pressure power is will produce between shaft peace foil, air film is formed between shaft peace foil.In bearing In the course of work, the elastic support structure that support component 2 is formed with flat foil 3 adaptive can be deformed, and make the gas of bearing Film thickness increases, and work is more stablized.The rotating machinery for being equipped with compliant foil air bearing does not need additional lubricating system, drops The low complexity of system, improves economy and reliability.Relative to traditional air hydrodynamic bearing, compliant foil air axis It holds with advantages such as large carrying capacity, high, the service life length of bearing stability.
Rigidity and damping are the important performance characteristics of bearing, directly affect the stability of rotor-support-foundation system, and compliant foil is empty What the rigidity of gas bearing and damping were determined by the elastic support structure that support component 2 and flat foil 3 are formed, reasonably it is distributed axis The support stiffness held increases structural damping, is the key that the design of compliant foil air bearing.
In the implementation of the present invention, it is found by the applicant that at least having the following deficiencies in the prior art:
In the prior art, determining per the rigidity of a kind of compliant foil air bearing and damping, if desired different-stiffness and The compliant foil air bearing of damping then needs the rigidity according to compliant foil air bearing leaved for development and damping, develops again The mold of a set of elastic support structure.But the manufacturing process of mould development is complicated, and the period is long, and inefficiency, therefore, need to be to existing There is technology to be improved.
Invention content
In view of the above existing problems in the prior art, the present invention provides a kind of compliant foil air bearing and its rigidity and The method of adjustment of damping.
The present invention is achieved through the following technical solutions above-mentioned purpose:
On the one hand, the present invention provides a kind of compliant foil air bearing, the bearing include bearing block, support component with And flat foil, for the flat foil coaxial package in the bearing block, the support component is assemblied in the bearing block and the flat foil Between, the support component includes assembly set and multiple compliant foils, and multiple compliant foil settings are covered in the assembly Inner wall on, the flat foil passes through multiple compliant foils supports.
Further, each compliant foil is arc-shaped, and one end of each compliant foil is fixed at The assembly is put on, and the flat foil is supported by the other end of each compliant foil.
Preferably, multiple compliant foils are provided with multiple rows of along the axial direction for being parallel to the bearing block.
Preferably, the one end for often arranging each of described compliant foil compliant foil is respectively positioned on and is parallel to the bearing On the same straight line of the central shaft of seat.
Preferably, it often arranges the compliant foil and is divided into first kind compliant foil and Second Type compliant foil, described One end of one type compliant foil and the Second Type compliant foil interlaced arrangement, each first kind compliant foil is equal It is located parallel on the straight line of the central shaft of the bearing block, the equal position in one end of each Second Type compliant foil In on the Article 2 straight line for the central shaft for being parallel to the bearing block, the first straight line and the second straight line are different straight Line.
Preferably, the central angle of each compliant foil is 15 °~60 °.
Further, the axial direction for set being assembled described in the outer wall upper edge of the assembly set is provided with more than one locating slot;
The axial direction of bearing block described in the inner wall upper edge of the bearing block is provided with more than one positioning protrusion, the positioning Protrusion is correspondingly arranged in the locating slot.
Further, there are two the locating slot settings, two locating slots are with the central shaft of the assembly set Center is oppositely arranged;
There are two the positioning protrusion is also provided with, two positioning protrusion phase centered on the central shaft of the bearing block To setting.
Preferably, the locating slot and the positioning protrusion are in mutually matched arc.
On the other hand, described the present invention also provides a kind of rigidity of compliant foil air bearing and damping method of adjustment Method includes:
There is provided the compliant foil of different in width, provide along the circumferential upper different densities of the assembly set compliant foil or/and The compliant foil for providing different-thickness by the compliant foil provided assembly in assembly set, and will be equipped with elastic foil The assembly set of piece is assemblied between bearing block and flat foil, realizes the adjustment of the circumferential rigidity of bearing;
Compliant foil be located in the axial direction of the assembly set and different-stiffness parameter, the elastic foil that will be provided are provided Piece is assemblied in assembly set, and the assembly set assembly for being equipped with compliant foil is realized bearing between bearing block and flat foil The adjustment of the rigidity of axial arbitrary point;
The compliant foil in multiple regions is provided, and the height of the compliant foil of different zones is different, the bullet that will be provided Property paillon be assemblied in assembly set in, and by be equipped with compliant foil assembly set assembly between bearing block and flat foil, realize The adjustment of the rigidity of bearing radially;
Multiple rows of compliant foil is provided, by the assembly of multiple rows of compliant foil in assembly set, the elastic foil of same row in assembly set Adjacent compliant foil interlaced arrangement in piece, and will be equipped with the assembly set assembly of compliant foil bearing block and flat foil it Between, realize the adjustment of the damping of bearing.
The beneficial effects of the invention are as follows:
A kind of compliant foil air bearing provided by the present invention, support component therein as elastic support structure, by Include assembly set and multiple compliant foils in support component, assembly set is fixed on the inner wall of bearing block, multiple compliant foils It being fixed on the inner wall of assembly set, flat foil is supported by multiple compliant foils, therefore, the if desired elasticity of different-stiffness and damping When foil air bearing, it is only necessary to which the compliant foil for selecting different in width, density, thickness or combination is assembled to assembly set In, then assembly set is assembled between bearing block peace foil again, you can obtain different-stiffness and the bearing of damping, do not need Redevelopment manufactures entire elastic support structure mold, solves and is needed in the prior art from the entire resilient support knot of manufacture newly developed Structure mold, causes manufacturing cost to increase, and the manufacturing cycle lengthens, the low technical problem of manufacture efficiency.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings Attached drawing.
Fig. 1 is the structural schematic diagram of the compliant foil air bearing of the prior art;
Fig. 2 is a kind of structural schematic diagram of compliant foil air bearing of the embodiment of the present invention;
Fig. 3 is the positive structure diagram of Fig. 2;
Fig. 4 is the structural schematic diagram of the support component in Fig. 2;
Fig. 5 is a kind of structural schematic diagram of the support component in the embodiment of the present invention;
Fig. 6 is another structural schematic diagram of the support component in the embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Fig. 2 is a kind of structural schematic diagram of compliant foil air bearing of the embodiment of the present invention, and Fig. 3 faces knot for Fig. 2's Structure schematic diagram, Fig. 4 are the structural schematic diagram of the support component in Fig. 2 referring to Fig. 2, Fig. 3 and Fig. 4, the axis of the embodiment of the present invention It contracts and includes bearing block 1, support component 2 and flat foil 3, for 3 coaxial package of flat foil in bearing block 1, support component 2 is assemblied in bearing Between 1 peace foil 3 of seat.Fig. 3 is the structural schematic diagram of the support component in Fig. 2, in conjunction with Fig. 2 and Fig. 3, the branch of the embodiment of the present invention Support component 2 includes assembly set 2.1 and multiple compliant foils 2.2, and assembly set 2.1 is arranged on the inner wall of bearing block 1, multiple bullets Property paillon 2.2 be arranged assembly set 2.1 inner wall on, flat foil 3 pass through multiple compliant foils 2.2 support.
In the embodiment of the present invention, after there is compliant foil 2.2 elasticity, shaft to be assemblied in flat foil 3, in the mistake of shaft rotation Cheng Zhong, the elastic support structure that support component is formed with flat foil adaptive can be deformed, and the air-film thickness of bearing is made to increase Add, work is more stablized.
Further, in the embodiment of the present invention, each compliant foil 2.2 is arc-shaped, one end of each compliant foil 2.2 It is fixed on assembly set 2.1, flat foil 3 is supported by the other end of each compliant foil 2.2, realizes the elasticity to flat foil Support.
In the embodiment of the present invention, multiple compliant foils 2.2 can be provided with along the axial direction for being parallel to bearing block 1 it is multiple rows of, it is more Row compliant foil 2.2 around bearing block 1 central shaft it is equiangularly spaced be arranged assembly set 2.1 inner wall on.
A kind of structural schematic diagram that Fig. 5 is the support component in the embodiment of the present invention is tied, in conjunction with Fig. 5, the embodiment of the present invention A kind of realization method be:Often one end of each compliant foil 2.2 in row's compliant foil 2.2, which is respectively positioned on, is parallel to bearing block 1 Central shaft same straight line on.
Fig. 6 is another structural schematic diagram of the support component in the embodiment of the present invention, in conjunction with Fig. 6, the embodiment of the present invention Another realization method be:Often the compliant foil 2.2 of row's compliant foil 2.2 divides for first kind compliant foil and Second Type Compliant foil, first kind compliant foil and Second Type compliant foil interlaced arrangement, the one of each first kind compliant foil End is respectively positioned on the straight line for the central shaft for being parallel to bearing block 1, and one end of each Second Type compliant foil is respectively positioned on It is parallel on the Article 2 straight line of the central shaft of bearing block 1, and straight line and Article 2 straight line are not same straight line.
Certainly, a kind of arrangement of above-mentioned only compliant foil 2.2, certainly, multiple rows of compliant foil 2.2 can also be around axis The central shaft of bearing 1 it is non-it is equiangularly spaced be arranged on the inner wall of assembly set 2.1, alternatively, 2.2 undulate of compliant foil is arranged On the inner wall of assembly set 2.1, i.e., the arrangement of compliant foil 2.2 can be carried out according to rigidity to be achieved or/and damping Actual arrangement, the embodiment of the present invention are without limitation.
Preferably, in the embodiment of the present invention, the central angle of each compliant foil 2.2 is 15 °~60 °, under such angle The support effect of elastic support structure countershaft is preferable.
In the embodiment of the present invention, assembly set 2.1 can be interference fitted on the inner wall of bearing block 1, naturally it is also possible to be used The mode of key connection, screw connection or welding is by 2.1 assembly of assembly set on the inner wall of bearing block 1, and the embodiment of the present invention is to this It is not restricted.
Further, in the embodiment of the present invention, in conjunction with Fig. 2, Fig. 3 and Fig. 4, the outer wall upper edge assembly set 2.1 of assembly set 2.1 Axial direction be provided with more than one locating slot 2.3, correspondingly, the axial direction of the inner wall upper edge bearing block 1 of bearing block 1 is provided with one A above positioning protrusion 1.1, positioning protrusion 1.1 are correspondingly arranged in locating slot 2.3, positioning protrusion 1.1 and locating slot 2.3 It cooperates, guiding can be provided for the assembly of assembly set 2.1, facilitate installation.
Further, there are two the quantity settings of the locating slot 2.3 of the embodiment of the present invention, two locating slots 2.3 are to fill It is oppositely arranged centered on mating 2.1 central shaft, correspondingly, there are two positioning protrusion 1.1 is also provided with, two positioning protrusion 1.1 It is oppositely arranged centered on the central shaft of bearing block 1.
Preferably, the locating slot 2.3 and positioning protrusion 1.1 of the embodiment of the present invention can be in mutually matched arc, in this way Installation of the positioning protrusion 1.1 in locating slot 2.3 can be facilitated.
The compliant foil air bearing of the embodiment of the present invention, before assembly, can be one has assembly set 2.1 therein Compliant foil 2.2 is first arranged sequentially according to set on assembly set 2.1, rectangle carries by the rectangular support of elasticity in assembly The both sides of body are welded to form a column after, by the cooperation of locating slot 2.3 and positioning protrusion 1.1,2.1 assembly of assembly set is existed On the inner wall of bearing block 1.
The compliant foil air bearing of the embodiment of the present invention, assembly set 2.1 therein before assembly, can also multiple bulks Carrier, each compliant foil 2.2 are installed on a block carrier, in assembly, are first mounted on compliant foil 2.2 and are corresponded to Block carrier on, then by locating slot 2.3 and positioning protrusion 1.1 cooperation, by block carrier assembly in bearing block 1 On wall.
A kind of compliant foil air bearing that the embodiment of the present invention is provided, support component therein are tied as resilient support Structure, since support component includes assembly set and multiple compliant foils, assembly is set on the inner wall of bearing block, multiple elasticity Paillon is provided with multiple rows of, central shaft equiangularly spaced setting of multiple rows of compliant foil around bearing block along the axial direction for being parallel to bearing block On the inner wall of assembly set, flat foil is supported by multiple compliant foils, in this way the adjustment width of compliant foil, density, thickness with And combination, then assembled in assembly covers, you can realize the adjustment of rigidity and damping, compared with the prior art in Bearing rigidity and damping are adjusted by the method from the entire elastic support structure mold of manufacture newly developed, the present invention only needs It is previously fabricated go out various sizes compliant foil, the rigidity further according to bearing and damping, select suitable compliant foil to be assembled , its R&D cycle can be shortened, and reduce manufacturing cost.
In the embodiment of the present invention, the density of the width of compliant foil, circumferentially compliant foil and the thickness of compliant foil The rigidity for determining each supporting point, it is every by increasing the width of elastic bumps, the number for increasing elastic bumps and increase The increase of support stiffness may be implemented in the thickness of a piece of elastic piece, otherwise can reduce support stiffness.
Specifically:
The compliant foil 2.2 of different in width (i.e. along the radial length of assembly set 2.1) is provided, is provided along assembly set 2.1 The bullet of the compliant foil 2.2 of different densities or/and offer different-thickness (i.e. along the axial length of assembly set 2.1) in circumferential direction Property paillon 2.2, by the compliant foil 2.2 provided assembly in assembly set 2.1, and the assembly that compliant foil 2.2 will be equipped with Set 2.1 is assemblied between bearing block 1 and flat foil 3, realizes the adjustment of the circumferential rigidity of bearing;
Compliant foil 2.2 be located in the axial direction of assembly set 2.1 and different-stiffness parameter, the elasticity that will be provided are provided Paillon 2.2 is assemblied in assembly set 2.1, and 2.1 assembly of assembly set for being equipped with compliant foil 2.2 in bearing block 1 and is put down Between foil 3, the adjustment of the rigidity of bearing axial direction arbitrary point is realized;
The compliant foil 2.2 in multiple regions is provided, and the height of the compliant foil 2.2 of different zones is different, will be carried The compliant foil 2.2 of confession is assemblied in assembly set 2.1, and will be equipped with 2.1 assembly of assembly set of compliant foil 2.2 in bearing block Between 1 and flat foil 3, the adjustment of the rigidity of bearing radially is realized, such as:By singular compliant foil 2.2 and even numbers elastic foil Piece 2.2 is designed to different height, it can be achieved that bearing is in radial stiffness variation, can be larger with height when shaft displacement is smaller Elastic bumps (singular piece or even numbers piece) contact, the elasticity of two kinds of height will be touched simultaneously after the displacement of shaft increases Paillon 2.2 (even numbers piece or singular piece), to realize the stiffness variation in radial direction, and so on can be arranged to 3 grades Even more rigidities.
Multiple rows of compliant foil 2.2 is provided, it is same in assembly set 2.1 by the assembly of multiple rows of compliant foil 2.2 in assembly set 2.1 Adjacent 2.2 interlaced arrangement of compliant foil in the compliant foil 2.2 of one row, and the assembly set 2.1 that compliant foil 2.2 will be equipped with It is assemblied between bearing block 1 and flat foil 3, the structure being arranged so makes compliant foil 2.2 phase of the shaft under certain displacement To moving displacement maximum, frictional dissipation work(of the elastic support structure in deformation process is improved to greatest extent, and bearing damp Source be mainly derived from the loss in elastic construction deformation process, so the damping of bearing can carry significantly under such configuration It is high, you can to adjust the damping of bearing.
By adjusting the circumferential rigidity of bearing and the rigidity of bearing axial direction arbitrary point, you can artificial control bearing is taken up an official post The stiffness parameters of a bit.
High-precision laser cutting, etching may be used in the research and development test stage in compliant foil 2.2 in the embodiment of the present invention The methods of manufacture, to shorten the R&D cycle, the mode that high speed stamping may be used in the large-scale production stage manufactures, reduce at This.
Embodiment provided above is the better embodiment of the present invention, only is used for facilitating illustrating the present invention, not to this hair It is bright to make any form of restriction, have usually intellectual in any technical field, if not departing from the put forward skill of the present invention In the range of art feature, using the equivalent embodiment for locally changing or modifying made by disclosed technology contents, and Without departing from the technical feature content of the present invention, in the range of still falling within the technology of the present invention feature.

Claims (10)

1. a kind of compliant foil air bearing, the bearing includes bearing block (1), support component (2) and flat foil (3), described For flat foil (3) coaxial package in the bearing block (1), the support component (2) is assemblied in the bearing block (1) and the flat foil (3) between, which is characterized in that
The support component (2) includes assembly set (2.1) and multiple compliant foils (2.2), and the assembly set (2.1) is fixed on On the inner wall of the bearing block (1), multiple compliant foils (2.2) are fixed on the inner wall of the assembly set (2.1), described Flat foil (3) is supported by multiple compliant foils (2.2).
2. compliant foil air bearing according to claim 1, which is characterized in that each compliant foil (2.2) is equal Arc-shaped, one end of each compliant foil (2.2) is fixed on the assembly set (2.1), and the flat foil (3) is logical Cross the other end support of each compliant foil (2.2).
3. compliant foil air bearing according to claim 2, which is characterized in that multiple compliant foil (2.2) edges Be parallel to the bearing block (1) axial direction be provided with it is multiple rows of.
4. compliant foil air bearing according to claim 3, which is characterized in that often arrange in the compliant foil (2.2) Each of one end of the compliant foil (2.2) be respectively positioned on the same straight line for the central shaft for being parallel to the bearing block (1).
5. compliant foil air bearing according to claim 3, which is characterized in that often arrange the compliant foil (2.2) packet Include first kind compliant foil and Second Type compliant foil, the first kind compliant foil and the Second Type elastic foil One end of piece interlaced arrangement, each first kind compliant foil is respectively positioned on the central shaft for being parallel to the bearing block (1) In first straight line, one end of each Second Type compliant foil is respectively positioned on the central shaft for being parallel to the bearing block (1) In second straight line, the first straight line is different straight lines from the second straight line.
6. compliant foil air bearing according to claim 1, which is characterized in that each compliant foil (2.2) Central angle is 15 °~60 °.
7. according to claim 1-6 any one of them compliant foil air bearing, which is characterized in that the assembly covers (2.1) Outer wall upper edge described in assembly set (2.1) axial direction be provided with more than one locating slot (2.3);
The axial direction of bearing block (1) described in the inner wall upper edge of the bearing block (1) is provided with more than one positioning protrusion (1.1), The positioning protrusion (1.1) is correspondingly arranged in the locating slot (2.3).
8. compliant foil air bearing according to claim 7, which is characterized in that the locating slot (2.3) is provided with two A, two locating slots (2.3) are oppositely arranged centered on the central shaft of the assembly set (2.1);
There are two the positioning protrusion (1.1) is also provided with, two positioning protrusion (1.1) are with the center of the bearing block (1) It is oppositely arranged centered on axis.
9. compliant foil air bearing according to claim 7, which is characterized in that the locating slot (2.3) and described fixed Position raised (1.1) is in mutually matched arc.
10. a kind of rigidity of compliant foil air bearing as described in claim 1 and damping method of adjustment, which is characterized in that The method includes:
The compliant foil that the compliant foil (2.2) of different in width is provided, the different densities in described assembly set (2.1) circumferential direction are provided (2.2) or/and provide different-thickness the compliant foil (2.2), the compliant foil provided (2.2) is assemblied in assembly It covers in (2.1), and the assembly set (2.1) for being equipped with compliant foil (2.2) is assemblied between bearing block (1) and flat foil (3), Realize the adjustment of the circumferential rigidity of bearing;
Compliant foil (2.2) be located in the axial direction of the assembly set (2.1) and different-stiffness parameter is provided, by what is provided Compliant foil (2.2) is assemblied in assembly set (2.1), and the assembly set (2.1) for being equipped with compliant foil (2.2) is assemblied in axis Between bearing (1) and flat foil (3), the adjustment of the rigidity of bearing axial direction arbitrary point is realized;
The compliant foil (2.2) in multiple regions is provided, and the height of the compliant foil (2.2) of different zones is different, will be carried The compliant foil (2.2) of confession is assemblied in assembly set (2.1), and will be equipped with assembly set (2.1) assembly of compliant foil (2.2) Between bearing block (1) and flat foil (3), the adjustment of the rigidity of bearing radially is realized;
Multiple rows of compliant foil (2.2) is provided, multiple rows of compliant foil (2.2) is assemblied in assembly set (2.1), assembly set (2.1) Adjacent compliant foil (2.2) interlaced arrangement in the compliant foil (2.2) of interior same row, and compliant foil (2.2) will be equipped with Assembly set (2.1) be assemblied between bearing block (1) and flat foil (3), realize the adjustment of the damping of bearing.
CN201810901604.1A 2018-08-09 2018-08-09 Elastic foil air bearing and method for adjusting rigidity and damping thereof Active CN108730330B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810901604.1A CN108730330B (en) 2018-08-09 2018-08-09 Elastic foil air bearing and method for adjusting rigidity and damping thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810901604.1A CN108730330B (en) 2018-08-09 2018-08-09 Elastic foil air bearing and method for adjusting rigidity and damping thereof

Publications (2)

Publication Number Publication Date
CN108730330A true CN108730330A (en) 2018-11-02
CN108730330B CN108730330B (en) 2023-08-08

Family

ID=63942505

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810901604.1A Active CN108730330B (en) 2018-08-09 2018-08-09 Elastic foil air bearing and method for adjusting rigidity and damping thereof

Country Status (1)

Country Link
CN (1) CN108730330B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111637149A (en) * 2020-05-27 2020-09-08 西安交通大学 Foil gas bearing with elastic damping structure
CN111664169A (en) * 2020-06-22 2020-09-15 珠海格力电器股份有限公司 Elastic support assembly and radial bearing adopting same
CN112081817A (en) * 2020-09-30 2020-12-15 中车株洲电机有限公司 Radial gas foil bearing
CN113090647A (en) * 2021-03-08 2021-07-09 湖南大学 High damping performance air bearing of two arrow head structures based on 3D prints
CN113803367A (en) * 2021-11-18 2021-12-17 天津飞旋科技股份有限公司 Foil dynamic pressure bearing, casting mold and shaft system
CN115539501A (en) * 2022-11-30 2022-12-30 天津飞旋科技股份有限公司 Elastic lamination assembly, foil dynamic pressure thrust bearing and rotating mechanical shaft system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104653598A (en) * 2015-03-17 2015-05-27 湖南大学 Novel tilting pad radial gas bearing
US20150362012A1 (en) * 2012-11-02 2015-12-17 Yury Ivanovich Ermilov Foil bearing assembly
CN105526249A (en) * 2016-01-18 2016-04-27 湖南大学 Combined mini-type foil gas dynamic pressure bearing
CN107237817A (en) * 2017-07-13 2017-10-10 海宁科巍轴承科技有限公司 A kind of self-sealing dynamic gas radial direction ceramic bearing
CN208651423U (en) * 2018-08-09 2019-03-26 北京瑞深航空科技有限公司 Compliant foil air bearing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150362012A1 (en) * 2012-11-02 2015-12-17 Yury Ivanovich Ermilov Foil bearing assembly
CN104653598A (en) * 2015-03-17 2015-05-27 湖南大学 Novel tilting pad radial gas bearing
CN105526249A (en) * 2016-01-18 2016-04-27 湖南大学 Combined mini-type foil gas dynamic pressure bearing
CN107237817A (en) * 2017-07-13 2017-10-10 海宁科巍轴承科技有限公司 A kind of self-sealing dynamic gas radial direction ceramic bearing
CN208651423U (en) * 2018-08-09 2019-03-26 北京瑞深航空科技有限公司 Compliant foil air bearing

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111637149A (en) * 2020-05-27 2020-09-08 西安交通大学 Foil gas bearing with elastic damping structure
CN111664169A (en) * 2020-06-22 2020-09-15 珠海格力电器股份有限公司 Elastic support assembly and radial bearing adopting same
CN111664169B (en) * 2020-06-22 2021-07-23 珠海格力电器股份有限公司 Elastic support assembly and radial bearing adopting same
CN112081817A (en) * 2020-09-30 2020-12-15 中车株洲电机有限公司 Radial gas foil bearing
CN113090647A (en) * 2021-03-08 2021-07-09 湖南大学 High damping performance air bearing of two arrow head structures based on 3D prints
CN113090647B (en) * 2021-03-08 2022-03-15 湖南大学 High damping performance air bearing of two arrow head structures based on 3D prints
CN113803367A (en) * 2021-11-18 2021-12-17 天津飞旋科技股份有限公司 Foil dynamic pressure bearing, casting mold and shaft system
CN115539501A (en) * 2022-11-30 2022-12-30 天津飞旋科技股份有限公司 Elastic lamination assembly, foil dynamic pressure thrust bearing and rotating mechanical shaft system

Also Published As

Publication number Publication date
CN108730330B (en) 2023-08-08

Similar Documents

Publication Publication Date Title
CN108730330A (en) The method of adjustment of compliant foil air bearing and its rigidity and damping
CN108730331A (en) The method of adjustment of axial hydrodynamic air bearing and its rigidity and damping
CN103438091B (en) There is the air hydrodynamic bearing of metal-rubber and compliant foil composite support structure
CN103423299B (en) A kind of air hydrodynamic bearing with the overlap joint type compliant foil that radially distributes
CN106594059B (en) Three-clove style gas paillon journal bearing
CN104454992B (en) Elastic radial air bearing
CN208651423U (en) Compliant foil air bearing
CN102003463A (en) Journal-foil air bearing
CN105793585A (en) Squeeze film damper, bearing unit, and turbine
CN104653598B (en) A kind of tilting-pad radial gas bearing
CN111637151A (en) Thrust air foil bearing
US20120169058A1 (en) Stator element for an electrical machine
CN202811846U (en) Air bearing structure,
CN111120503A (en) Thrust dynamic pressure gas bearing with elastic supporting structure
CN209908981U (en) Elastic support assembly and dynamic pressure gas radial bearing
CN103438096B (en) A kind of foil gas bearing with the circumferentially ripple paper tinsel of class beam structure
CN213598404U (en) Thrust bearing assembly
CN108180221A (en) A kind of elastic foil gas bearing structure that can incline a little
CN203368170U (en) Split type rotor
CN203431003U (en) Axial aero dynamic bearing
CN209908992U (en) Elastic supporting mechanism and dynamic pressure gas thrust bearing
CN102808848B (en) Air bearing structure
CN103388622B (en) Axial gas hydraulic bearing
CN220600235U (en) Axial fastening foil type air bearing
CN211175011U (en) Static pressure thrust air-float axial bearing with hexagonal star pressure-equalizing groove

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant