CN201373019Y - Dynamical pressure gas thrust bearing supported in axial direction - Google Patents
Dynamical pressure gas thrust bearing supported in axial direction Download PDFInfo
- Publication number
- CN201373019Y CN201373019Y CN200920031674U CN200920031674U CN201373019Y CN 201373019 Y CN201373019 Y CN 201373019Y CN 200920031674 U CN200920031674 U CN 200920031674U CN 200920031674 U CN200920031674 U CN 200920031674U CN 201373019 Y CN201373019 Y CN 201373019Y
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- Prior art keywords
- fan
- paillon foil
- bubbling
- shaped
- tile fragment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
- F16C17/042—Sliding-contact bearings for exclusively rotary movement for axial load only with flexible leaves to create hydrodynamic wedge, e.g. axial foil bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
Abstract
The utility model discloses a dynamical pressure gas thrust bearing supported in the axial direction. The dynamical pressure gas thrust bearing comprises a bearing support and support tinsels, and is characterized in that at least three fan-shaped blocks which are uniformly distributed in the circumferential direction are arranged on the upper end face of the bearing support; a pre-wedge angle is formed at one end of each fan-shaped block; each fan-shaped block is connected with one support tinsel which is a fan-shaped compound tinsel; and the fan-shaped compound tinsel comprises a fan-shaped bubbling tinsel and a fan-shaped flat tinsel, and the size of the fan-shaped bubbling tinsel is identical with that of the fan-shaped flat tinsel, wherein, the bubbling tinsel is arranged above each fan-shaped block and under the flat tinsel. The dynamical pressure gas thrust bearing mainly has the advantages that the structure is simple, the fan-shaped flat tinsel and the bubbling tinsel are convenient to manufacture, the surface rigidity of the bearing with the tinsels is uniform, the advantages of the flat tinsel can be exerted fully, the deformations of bubbles are fully utilized to regulate the rigidity, and the structural rigidity and the dynamic characteristics of the bearing can be improved.
Description
Technical field
The utility model relates to a kind of high rate turbine machinery kinetic pressure gas bearing structure usefulness, that have axially support.
Background technique
Because the superiority that elastic foil bearing is used on high rate turbine machinery comes into one's own day by day, and has obtained developing rapidly its research, application in recent years.But because it is mainly used in military industry fields such as Aero-Space, particularly the ripple paper tinsel type foil bearing of the U.S. is widely used in airborne turbine, automobile turbocharger and some Aero-Space of fighters such as civil aircraft such as Boeing and phantom with on liquid hydrogen, the liquid oxygen pump, to its result of study and the rarely seen report of design criterion, and its complex manufacturing technology, exploitation drops into huge, and technological level requires high.Thereby some countries all have the foil bearing of characteristic separately being devoted to develop in recent years, and expectation can successfully be applied to high rate turbine machinery.In recent years, the radial gas bearing provided exploitation of novel paillon foil rarely has report, but then more rare to the exploitation of relevant novel paillon foil thrust bearing.In the paillon foil formula thrust hydrodynamic gas-lubricated bearing that use in high rate turbine machinery field, still the structure applications such as ripple paper tinsel type with the U.S. are the most extensive at present.This ripple paper tinsel profile shaft holds by one group of fan-shaped flat paillon foil that constitutes bearing surface to be formed with the ripple paper tinsel with many elastic waves.Flat paillon foil is bearing on the ripple paper tinsel, and the ripple paper tinsel provides elastic base for top foil and controlled the rigidity of bearing surface.This structure is considered to the most extensive and ripe foil bearing of current development and application, yet this bearing construction complexity, the required precision height, the performance and the installation situation of bearing have much relations, make complicated difficulty, from the determining of design criterion, physical dimension, material selection to processing technology (comprise heat treatment and surface bury) all need carry out extensive work, China will directly adopt the foil bearing difficulty of this form very big.Given this, need seek simple in structure, production and processing easily, exploitation drop into little, the novel paillon foil thrust bearing that is suitable for the domestic industry level, has China's independent intellectual property right.My school once proposed and had developed the structure of elastic material supporting flat foil type paillon foil formula thrust hydrodynamic gas-lubricated bearing, adopt the sheet rubber elastic material to support as paillon foil, though test shows and can reach steady running on the high rate turbine decompressor, but because of its non-refractory, use is very limited, and fails so far to be put to practicality industrial.
Summary of the invention
The purpose of this utility model provides bubbling supporting flat foil type paillon foil formula thrust hydrodynamic gas-lubricated bearing a kind of simple and feasible and excellent performance, can give full play to the advantage of flat foil type paillon foil, and the distortion that makes full use of bubbling self regulates rigidity, improved the structural rigidity and the dynamic characteristic of bearing.
For reaching above purpose, the utility model takes following technological scheme to be achieved:
A kind of kinetic pressure gas thrust bearing with axially support, comprise bearing support, supporting paillon foil, it is characterized in that, the bearing support upper-end surface is provided with at least three circumferential uniform fan-shaped tile fragments, one end of this fan-shaped tile fragment is processed with the pre-angle of wedge, connects a described supporting paillon foil on each fan-shaped tile fragment, and this supporting paillon foil is fan-shaped composite foil, a fan-shaped bubbling paillon foil and a fan-shaped flat paillon foil identical by size constitute, and wherein the bubbling paillon foil places fan-shaped tile fragment top, flat paillon foil below.
In the such scheme, described bubbling paillon foil upper edge covering of the fan radially is provided with the multi-turn bubbling, and it is circumferentially uniform along covering of the fan that each encloses bubbling.One end of described fan-shaped tile fragment is provided with tapped hole near the covering of the fan of periphery, corresponding mounting point is provided with screw hole on flat paillon foil, the bubbling paillon foil, by the tapped hole on this screw hole and the fan-shaped tile fragment, bubbling paillon foil, flat paillon foil are fixed on the fan-shaped tile fragment with screw; The covering of the fan of the close periphery of the other end of fan-shaped tile fragment is provided with locating piece bubbling paillon foil, flat paillon foil radially is limited on the fan-shaped tile fragment.Described locating piece is a locating stud, and relative this locating stud position location is provided with draw-in groove on bubbling paillon foil, the flat paillon foil, snaps in described locating stud by this draw-in groove, and soon bubbling paillon foil, flat paillon foil radially are limited on the fan-shaped tile fragment.The pre-angle of wedge of described fan-shaped tile fragment is 0.5～1 °.Described fan-shaped tile fragment can be connected as a single entity with bearing support.
Advantage of the present utility model is mainly reflected in simple in structure, fan-shaped flat paillon foil and bubbling paillon foil are easy to make, this foil bearing surface rigidity is even, can give full play to the advantage of flat foil type paillon foil, and the distortion that makes full use of bubbling self regulates rigidity, improved the structural rigidity and the dynamic characteristic of bearing.The utility model bearing structure has embodied this yielding support of bubbling and has had good damping characteristic.In addition, kinetic pressure gas thrust bearing of the present utility model is made, adjusts also very simple, change the size (comprising foil thickness, bubbling height and setting type etc.) of the thickness and the bubbling paillon foil of flat paillon foil, and the pre-wedge angle of fan-shaped tile fragment can obtain the dynamic pressure thrust gas bearing of different bearing performances.
Description of drawings
Fig. 1 is the utility model bubbling supporting thrust kinetic pressure gas bearing structure schematic representation.
Fig. 2 is that C among Fig. 1 is to view (1/4 part).
Fig. 3 is the segmental pad block structural diagram among Fig. 2.Wherein Fig. 3 (a) is a plan view; Fig. 3 (b) is a plan view.
Fig. 4 is the 1/4 bubbling supporting paillon foil plan structure figure among Fig. 1.
Fig. 5 is 1/4 flat paillon foil plan structure figure among Fig. 1.
Fig. 6 is the fundamental diagram between Fig. 2 structure and the rotating shaft thrust button.
Among Fig. 1 to Fig. 6: 1. bearing support; 2. fan-shaped tile fragment; 3. bubbling paillon foil; 4. flat paillon foil; 5. locating stud; 5 ' draw-in groove; 6. screw; 7. inclined-plane; 8. tapped hole; 9. bubbling; 10 screw holes; 11. rotating shaft thrust button.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
The structure of a kind of bubbling supporting flat foil type paillon foil formula kinetic pressure gas thrust bearing of the present utility model as shown in Figure 1 and Figure 2, bearing support 1 end face circumferencial direction is provided with the fan-shaped tile fragment 2 that equally distributed four (or three, six) have pre-wedge angle, fan-shaped tile fragment 2 can be made into one with bearing support 1, perhaps the henry chloranthus herb piece is made separately, is fastenedly connected with screw and bearing support 1 again.Bubbling paillon foil 3 and flat paillon foil 4 (both sizes are consistent) are housed on the fan-shaped tile fragment 2, and bubbling paillon foil 3 and flat paillon foil 4 are fixed on the fan-shaped tile fragment 2 with screw 6; By locating stud 5 bubbling paillon foil 3 and flat paillon foil 4 radially are limited on the fan-shaped tile fragment 2 simultaneously.
As shown in Figure 3, an end of fan-shaped tile fragment 2 is provided with tapped hole 8 near periphery, is used for bubbling paillon foil 3, flat paillon foil 4 are fixed with it by screw 6.The other end of fan-shaped tile fragment 2 is provided with locating stud 5 near periphery, is used for bubbling paillon foil 3, flat paillon foil 4 are radially limited with it.The end that fan-shaped tile fragment 2 is provided with locating stud 5 has an inclined-plane 7 (account for covering of the fan 1/3～1/2), and this inclined-plane 7 both had been pre-wedge angle with the angle of horizontal plane, and θ is preferably in 0.5～1 °.
As Fig. 4, shown in Figure 5, bubbling paillon foil 3 is fan-shaped with flat paillon foil 4, the mounting point of the tapped hole 8 of the corresponding fan-shaped tile fragment 2 of one end is provided with screw hole 10, and screw 6 is pressed on the fan-shaped tile fragment 2 bubbling paillon foil 3, flat paillon foil 4 by screw hole 10, tapped hole 8; The position of corresponding fan-shaped tile fragment 2 locating studs 5 of the other end has the draw-in groove 5 ' that allows locating stud 5 to pass, and locating stud 5 is radially limited two paillon foils 3,4 by draw-in groove 5 ', but can be up and down.
As shown in Figure 6, thrust bearing 1 is made relative u when moving with rotating shaft thrust surface 11, by wedge shape space import h1 the air film that enters gap h2 formation is pushed, and produces the dynamic pressure effect bearing load, and wherein h1＞h2 changes h
1, h
2, can obtain the dynamic pressure thrust gas bearing of different bearing performances.
Bubbling supporting flat foil type paillon foil formula kinetic pressure gas thrust bearing of the present utility model has passed through comprehensive experimental study and practical application on Xi'an Communications University's high-speed gas bearing turbo-expander, the result shows that the kinetic pressure gas thrust bearing of this structure has good bearing capacity, dynamic characteristic and damping capacity.
Claims (6)
1, a kind of kinetic pressure gas thrust bearing with axially support, comprise bearing support, supporting paillon foil, it is characterized in that, the bearing support upper-end surface is provided with at least three circumferential uniform fan-shaped tile fragments, one end of this fan-shaped tile fragment is processed with the pre-angle of wedge, connects a described supporting paillon foil on each fan-shaped tile fragment, and this supporting paillon foil is a composite foil, a fan-shaped bubbling paillon foil and a fan-shaped flat paillon foil identical by size constitute, and wherein the bubbling paillon foil places fan-shaped tile fragment top, flat paillon foil below.
2, the kinetic pressure gas thrust bearing with axially support as claimed in claim 1 is characterized in that, described bubbling paillon foil upper edge covering of the fan radially is provided with the multi-turn bubbling, and it is circumferentially uniform along covering of the fan that each encloses bubbling.
3, the kinetic pressure gas thrust bearing with axially support as claimed in claim 1, it is characterized in that, one end of described fan-shaped tile fragment is provided with tapped hole near the covering of the fan of periphery, corresponding mounting point is provided with screw hole on flat paillon foil, the bubbling paillon foil, by the tapped hole on this screw hole and the fan-shaped tile fragment, bubbling paillon foil, flat paillon foil are fixed on the fan-shaped tile fragment with screw; The covering of the fan of the close periphery of the other end of fan-shaped tile fragment is provided with locating piece bubbling paillon foil, flat paillon foil radially is limited on the fan-shaped tile fragment.
4, the kinetic pressure gas thrust bearing with axially support as claimed in claim 3, it is characterized in that, described locating piece is a locating stud, relative this locating stud position location is provided with draw-in groove on bubbling paillon foil, the flat paillon foil, snap in described locating stud by this draw-in groove, soon bubbling paillon foil, flat paillon foil radially are limited on the fan-shaped tile fragment.
5, the kinetic pressure gas thrust bearing with axially support as claimed in claim 1 is characterized in that, the pre-angle of wedge of described fan-shaped tile fragment is 0.5～1 °.
As the described kinetic pressure gas thrust bearing of one of claim 1 to 5, it is characterized in that 6, described fan-shaped tile fragment and bearing support are connected as a single entity with axially support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920031674U CN201373019Y (en) | 2009-01-14 | 2009-01-14 | Dynamical pressure gas thrust bearing supported in axial direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920031674U CN201373019Y (en) | 2009-01-14 | 2009-01-14 | Dynamical pressure gas thrust bearing supported in axial direction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373019Y true CN201373019Y (en) | 2009-12-30 |
Family
ID=41499103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920031674U Expired - Lifetime CN201373019Y (en) | 2009-01-14 | 2009-01-14 | Dynamical pressure gas thrust bearing supported in axial direction |
Country Status (1)
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|---|---|
| CN (1) | CN201373019Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407930A (en) * | 2010-09-01 | 2012-04-11 | 贝克船舶系统有限公司 | Bearing element for a rudder bearing |
| CN103047281A (en) * | 2012-12-22 | 2013-04-17 | 西安建筑科技大学 | Foil dynamical pressure gas bearing with viscoelastic structure |
| CN104769296A (en) * | 2012-10-16 | 2015-07-08 | 株式会社Ihi | Thrust bearing |
| CN105888847A (en) * | 2015-05-19 | 2016-08-24 | 罗立峰 | Minitype turbojet engine |
| CN106438676A (en) * | 2016-12-05 | 2017-02-22 | 中国工程物理研究院机械制造工艺研究所 | Flexible dynamic-pressure gas thrust bearing and assembling method thereof |
| CN108050152A (en) * | 2017-12-07 | 2018-05-18 | 大连理工大学 | Spiral groove type dynamic pressure air thrust foil bearing |
| CN111188781A (en) * | 2018-11-14 | 2020-05-22 | 翰昂汽车零部件有限公司 | Air compressor for vehicle |
| CN111301082A (en) * | 2020-03-19 | 2020-06-19 | 北京汽车股份有限公司 | Bush assembly and vehicle |
| CN111561438A (en) * | 2020-04-28 | 2020-08-21 | 北京稳力科技有限公司 | Air compressor, motor and pneumatic dynamic pressure thrust bearing |
| CN112160980A (en) * | 2020-08-26 | 2021-01-01 | 珠海格力电器股份有限公司 | Gas dynamic pressure bearing, motor and compressor |
| CN114992232A (en) * | 2022-04-12 | 2022-09-02 | 中船重工(重庆)西南装备研究院有限公司 | Thrust foil gas bearing and assembling method thereof |
-
2009
- 2009-01-14 CN CN200920031674U patent/CN201373019Y/en not_active Expired - Lifetime
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9758231B2 (en) | 2010-09-01 | 2017-09-12 | Becker Marine Systems Gmbh & Co. Kg | Rudder bearing |
| CN102407930B (en) * | 2010-09-01 | 2015-04-15 | 贝克船舶系统有限公司 | Bearing element for a rudder bearing |
| CN102407930A (en) * | 2010-09-01 | 2012-04-11 | 贝克船舶系统有限公司 | Bearing element for a rudder bearing |
| US9810259B2 (en) | 2012-10-16 | 2017-11-07 | Ihi Corporation | Thrust bearing |
| CN104769296A (en) * | 2012-10-16 | 2015-07-08 | 株式会社Ihi | Thrust bearing |
| EP2910802A4 (en) * | 2012-10-16 | 2016-05-25 | Ihi Corp | Thrust bearing |
| CN103047281B (en) * | 2012-12-22 | 2015-10-28 | 西安建筑科技大学 | There is the Foil gas bearing of viscoelastic structure |
| CN103047281A (en) * | 2012-12-22 | 2013-04-17 | 西安建筑科技大学 | Foil dynamical pressure gas bearing with viscoelastic structure |
| CN105888847A (en) * | 2015-05-19 | 2016-08-24 | 罗立峰 | Minitype turbojet engine |
| CN106438676A (en) * | 2016-12-05 | 2017-02-22 | 中国工程物理研究院机械制造工艺研究所 | Flexible dynamic-pressure gas thrust bearing and assembling method thereof |
| CN106438676B (en) * | 2016-12-05 | 2019-02-19 | 中国工程物理研究院机械制造工艺研究所 | Flexible kinetic pressure gas thrust bearing and its assemble method |
| CN108050152A (en) * | 2017-12-07 | 2018-05-18 | 大连理工大学 | Spiral groove type dynamic pressure air thrust foil bearing |
| CN111188781A (en) * | 2018-11-14 | 2020-05-22 | 翰昂汽车零部件有限公司 | Air compressor for vehicle |
| CN111188781B (en) * | 2018-11-14 | 2021-09-21 | 翰昂汽车零部件有限公司 | Air compressor for vehicle |
| CN111301082A (en) * | 2020-03-19 | 2020-06-19 | 北京汽车股份有限公司 | Bush assembly and vehicle |
| CN111561438A (en) * | 2020-04-28 | 2020-08-21 | 北京稳力科技有限公司 | Air compressor, motor and pneumatic dynamic pressure thrust bearing |
| CN112160980A (en) * | 2020-08-26 | 2021-01-01 | 珠海格力电器股份有限公司 | Gas dynamic pressure bearing, motor and compressor |
| CN112160980B (en) * | 2020-08-26 | 2021-10-08 | 珠海格力电器股份有限公司 | Gas dynamic pressure bearing, motor and compressor |
| CN114992232A (en) * | 2022-04-12 | 2022-09-02 | 中船重工(重庆)西南装备研究院有限公司 | Thrust foil gas bearing and assembling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091230 Effective date of abandoning: 20090114 |