CN114941657A - Bearing seat suitable for assembling insert and air bearing based on bearing seat - Google Patents
Bearing seat suitable for assembling insert and air bearing based on bearing seat Download PDFInfo
- Publication number
- CN114941657A CN114941657A CN202210532931.0A CN202210532931A CN114941657A CN 114941657 A CN114941657 A CN 114941657A CN 202210532931 A CN202210532931 A CN 202210532931A CN 114941657 A CN114941657 A CN 114941657A
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- CN
- China
- Prior art keywords
- insert
- bearing seat
- bearing
- foil
- groove
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Classifications
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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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/02—Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
- F04D29/057—Bearings hydrostatic; hydrodynamic
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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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- 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
- F16C17/08—Sliding-contact bearings for exclusively rotary movement for axial load only for supporting the end face of a shaft or other member, e.g. footstep bearings
Abstract
The invention relates to an air bearing, in particular to a bearing seat suitable for assembling an insert and an air bearing comprising the same, wherein the bearing seat comprises a disc-shaped bearing seat body, a bearing seat mounting groove is formed in the disc surface of the bearing seat body, the axial lead of the bearing seat mounting groove is collinear with the axial lead of the bearing seat body, and compared with the prior art, the air bearing is characterized in that: the bottom wall of the bearing seat mounting groove extends upwards to form N fan-shaped body bosses with the same shape, a fan-shaped bearing seat embedding groove is formed in the straight edge of one side, close to each body boss, of each body boss, and a screw through hole is formed in the middle of the bottom of each bearing seat embedding groove; n is more than or equal to 3. Compared with the prior art, the bearing seat embedding groove is suitable for assembling the insert, a base plate in the prior art is omitted, and parts and processing cost are saved. The corrugated foil is sleeved on the insert, welding is not needed, and deformation of the corrugated foil caused by welding is avoided.
Description
Technical Field
The invention relates to an air bearing, in particular to a bearing seat suitable for assembling an insert and an air bearing comprising the same.
Background
The patent publication No. CN112879318A discloses a high-speed centrifugal compressor, and specifically discloses a thrust air bearing, which comprises a bottom plate, a middle support piece and a top foil, wherein the bottom plate is annular, a plurality of cooling grooves are arranged on the bottom plate along the circumference, and a plurality of fixed mounting holes are arranged on the outer edge of the bottom plate; the middle supporting piece comprises a plurality of supporting foils and elastic foils, the supporting foils and the elastic foils are fixed on the bottom plate in a spot welding mode, and the supporting foils and the elastic foils are grouped in pairs and used for supporting the top foil; the top layer foil comprises a plurality of single foils which are annularly arranged, and two adjacent single foils are flexibly connected to form an integral top layer foil structure.
The invention patent of publication No. CN108286567A discloses a thrust foil hydrodynamic air bearing with a thick top foil structure, which comprises a bottom plate, a supporting bump foil and a top foil, wherein the circular bottom plate is arranged below the top foil, a plurality of fan-shaped top foils are fixed above the bottom plate, the supporting bump foil is assembled between the bottom plate and the top foil, the thrust foil hydrodynamic air bearing further comprises an inlet section gasket arranged on one radial side of the joint of the top foil and the bottom plate, the thickness of the inlet section gasket is adjustable, and the supporting bump foil and the top foil are assembled in a pre-tightening manner.
All contained the bottom plate among the technical scheme that above-mentioned patent was disclosed to wave foil, top foil are all directly or indirectly connected with the bottom plate, and the bottom plate all is through the screw rigid coupling on diffuser or bearing frame usually, have not only occupied limited space, and under the effect of long-term dynamic load moreover, the screw can appear becoming flexible, the fracture, influences the stability of gas compressor entire system. Moreover, the supporting wave foil is easy to deform due to welding, so that the wave foil is tilted, finally, the top wave is uneven, and the gas film is not uniform during operation.
Disclosure of Invention
In order to overcome one of the defects or shortcomings of the prior art, the invention discloses a bearing seat suitable for assembling an insert, which adopts the technical scheme that:
the utility model provides a be suitable for bearing frame of assembling insert, includes discoid bearing frame body, offers the air bearing mounting groove in the quotation of bearing frame body, the axial lead of air bearing mounting groove and the axial lead collineation of bearing frame body, the difference with prior art is: the bottom wall of the air bearing mounting groove extends upwards to form N fan-shaped body bosses with the same shape, a fan-shaped bearing seat embedding groove is formed in the straight edge of one side, close to each body boss, of each body boss, and a screw through hole is formed in the middle of the bottom of each bearing seat embedding groove; n is more than or equal to 3.
Further, air guide channels are formed between the body bosses and the side walls of the air bearing mounting grooves and between adjacent body bosses.
Further, a main shaft hole is formed in the center of the bearing seat body, and a key groove is formed in the side wall of the main shaft hole; an annular air guide groove is formed in the disc surface of the bearing seat body and close to the edge of the disc surface, the annular air guide groove and the air bearing mounting groove are alternate, and N air guide holes with openings in the circumferential circular surface of the bearing seat body penetrate through the annular air guide groove and the air bearing mounting groove.
The invention also discloses an air bearing based on the bearing seat suitable for assembling the insert, which comprises
A top foil;
one side of each wave foil monomer extends outwards with the same curvature to form a non-wave band, and the non-wave band is provided with 1 wave foil through hole with a shape similar to that of the bearing seat embedding groove;
the top surface of each insert extends upwards to form an insert bulge with the shape similar to that of the insert groove of the bearing seat, and the height of the insert bulge is greater than or equal to the thickness of the bump foil monomer; a screw hole is vertically formed in the middle of the insert; the N inserts are respectively placed into the N bearing seat embedding grooves;
n screws respectively penetrate through the screw through holes on the back of the bearing seat body and are then in threaded connection with the screw holes;
the N bump foil monomers are respectively sleeved on the N inserts through bump foil through holes on the N bump foil monomers; the top end of each insert and/or the top end of the insert bulge is fixedly connected with the top foil through spot welding.
Furthermore, the top foil comprises N top foil single bodies, each top foil single body comprises a fixed section, an abutting section higher than the fixed section and a turning section which connects the fixed section and the abutting section into a whole, and the distance between the lower surface of the fixed section and the lower surface of the abutting section is smaller than the wave height of the wave foil single body; the fixing sections of the N top foil monomers are fixedly connected with the top ends of the N inserts and/or the top ends of the insert bulges through laser spot welding.
Furthermore, the top foil comprises N top foil single bodies, and every two adjacent top foil single bodies are connected into a whole through a wavy lace to form a ring; the edges of the top foils on the same side are fixedly connected with the top ends of the inserts and/or the top ends of the insert bulges through laser spot welding.
Further, the wave shaped laces include an inner lace adjacent the inner loop and an outer lace adjacent the outer loop.
Furthermore, the N inserts are in transition fit or clearance fit with the N bearing seat insert grooves respectively and are bonded through high-temperature-resistant glue.
Further, the height of the insert is greater than the depth of the insert groove of the bearing seat.
Compared with the prior art, the invention has the following beneficial technical effects:
1. the bottom plate in the prior art is saved, and parts and processing cost are saved.
2. The wave foil is sleeved on the insert and does not need welding, so that deformation of the wave foil caused by welding is avoided.
3. The wave foil is sleeved on the insert, the insert is used for limiting the wave foil in the radial direction and the axial direction, welding and fixing are not needed, the possibility of desoldering and dropping is avoided, the operation is more reliable, the extension and retraction of the free end of the wave foil are not limited, and corresponding elasticity and damping are provided.
4. The corrugated foil is sleeved on the insert, so that the surface smoothness of bearing assembly is improved, the uniformity of stress and friction is improved, the abrasion is reduced, and the service life is prolonged.
5. The bottom plate in the prior art is omitted, the space is saved, and the miniaturization and the light weight of the gas compressor are facilitated.
6. Simple structure and convenient installation.
Drawings
Fig. 1 is a schematic structural view of a bearing housing of the present invention.
Fig. 2 is a schematic structural view of another view of the bearing seat of the present invention.
FIG. 3 is a schematic structural diagram of a bump foil unit according to the present invention.
FIG. 4 is a schematic view of the insert of the present invention.
Fig. 5 is a schematic view of the structure of the top foil monomer in example 2.
Fig. 6 is a schematic structural diagram of the bearing seat in example 2 after being assembled with the bump foil unit, the insert and the top foil unit.
Fig. 7 is a schematic view of the structure of the top foil in example 3.
Fig. 8 is a schematic structural view of the bearing seat in example 3 after being assembled with the bump foil unit, the insert and the top foil.
Detailed Description
The present invention will be further described with reference to the drawings, taking the bearing housing body 100 as an example.
A main shaft hole 101 is formed in the center of the bearing seat body 100, and a key groove 102 is formed in the side wall of the main shaft hole 101; an annular air guide groove 103 is formed in the disc surface of the bearing seat body 100 and close to the edge of the disc surface, the annular air guide grooves 103 are alternate with air bearing installation grooves 104, and 6 air guide holes 105 which are opened in the circumferential circular surface of the bearing seat body 100 penetrate through the annular air guide grooves 103 and the air bearing installation grooves 104.
The bearing seat of the embodiment can be integrally machined to complete the plane and the milling groove, and the tolerance precision of each insert positioning surface matched with the bearing seat can be ensured.
One side of each wave foil monomer 1 extends outwards with the same curvature to form a non-wave band 11, and 1 wave foil through hole 12 with the shape similar to that of the bearing seat embedding groove 108 is formed in the non-wave band 11;
the top surface of each insert 2 extends upwards to form an insert boss 22 with a shape similar to that of the bearing seat insert groove 108, and the height of the insert boss 22 is more than or equal to the thickness of the bump foil monomer 1; the middle part of the insert 2 is vertically provided with a screw hole 21; the 6 inserts 2 are respectively placed in the 6 bearing seat embedding grooves 108;
6 screws which are respectively penetrated through the screw through holes 109 on the back of the bearing seat body 100 and then are in threaded connection with the screw holes 21; thereby fixing the insert 2 to the bearing housing body 100.
6 corrugated foil single bodies 1 are respectively sleeved on 6 inserts 2 through the corrugated foil through holes 12 on the corrugated foil single bodies; the possibility that the wave foil monomer 1 is detached is completely eliminated.
A top foil 3; the foil-type wave foil single body 31 comprises 6 top foil single bodies 31, wherein each top foil single body 31 comprises a fixed section 311, an abutting section 312 which is higher than the fixed section 311, and a turning section 313 which connects the fixed section 311 and the abutting section 312 into a whole, and the distance between the lower surface of the fixed section 311 and the lower surface of the abutting section 312 is smaller than the wave height of the wave foil single body 1; the fixing sections 311 of the 6 top foil monomers 31 are respectively and fixedly connected with the top ends of the 6 inserts 2 and/or the top ends of the insert bulges 22 through laser spot welding.
In another preferred embodiment, the 6 inserts 2 are respectively in transition fit or clearance fit with the 6 bearing seat insert grooves 108 and are bonded by high temperature resistant glue.
In another preferred embodiment, 6 inserts 2 are respectively in interference fit with 6 bearing seat insert grooves 108, so that 6 screws can be omitted, and the screw holes 21 do not need to be formed in the middle of the inserts 2, and the screw through holes 109 do not need to be formed in the middle of the bottom of the bearing seat insert grooves 108.
In another preferred embodiment, the insert 2 has a height greater than the depth of the housing insert pocket 108. The insert 2 is made of any material suitable for welding, such as stainless steel, carbon steel or high-temperature alloy, and is different from the common aluminum material of the bearing seat body 100, so that the welding is more convenient than the aluminum material, and the welding strength is higher.
After the 6 top foil single bodies 31 are welded and fixed, the turning section 313 and the abutting section 312 of each top foil single body 31 are tilted upward, and each top foil single body 31 is in a slope shape with a lower end and a higher end.
For convenience of explanation of the structural relationship between the bump foil unit 1, the insert 2, and the top foil unit 31 and the bearing housing body 100, in fig. 6, the insert 2 is not mounted in the bearing housing insert groove 102 at the lower right position, nor is there a screw, nor is the bump foil unit 1 fitted, nor is the top foil unit 31 welded; an insert 2 is assembled in the bearing seat embedding groove 102 at the right position, and the corrugated foil single body 1 is sleeved on the insert 2, but the top foil single body 31 is not welded; the corrugated foil single body 1, the insert 2 and the top foil single body 31 are completely assembled on the inserts 2 at other positions. The small black dots in the figure are the weld spots of the laser weld.
The air bearing of this embodiment is an air thrust bearing, when the spindle drives the thrust disk located at the opposite side of the bearing seat body 100 to rotate, the thrust disk drives the surrounding air to simultaneously rotate and flow, when the air that rotates and flows through the annular top foils 3 with high and low intervals, under the action of the boundary layer adsorption effect, a wedge-shaped air film is formed, thrust forces to be separated from each other will be generated between the paired air thrust bearings, the higher the speed of the shaft rotation is, the larger the generated thrust force is, the higher the pressure of the air correspondingly entering the wave-shaped grooves on the lower surface of each wave foil monomer 1 is, each wave foil monomer 1 can press each top foil monomer 31 to prevent each top foil monomer from being collapsed, which is a dynamic balance process, in this process, the wave foil monomers 1 are telescopically deformed with small amplitude, and the wave height can change with small amplitude to adapt to the change of the shaft rotation speed.
After welding, the lower surface of the annular top foil 3 is partially abutted against the top surface of the insert 2, and the wavy laces 32 are naturally bent and deformed, so that the entire annular top foil 3 is in an annular wave shape with alternate heights. Because the wave-shaped tying belt 32 has a dragging effect on the adjacent top foil single bodies 31, the top surface of the whole top foil is smoother, the uniformity of stress and friction is improved, the abrasion is reduced, and the service life is prolonged.
For convenience of explaining the structural relationship among the bump foil unit 1, the insert 2, the annular top foil 3 and the bearing seat, in fig. 8, the right side of the top foil 3 is half-cut, the insert 2 is not assembled in the bearing seat insert groove 102 at the lower position, the bump foil unit 1 sleeved on a part of the adjacent insert 2 is shown, and the insert 2 is assembled in the 1 bearing seat insert groove 102 at the right side, and the bump foil unit 1 is shown; the top right 1 bearing seat insert pocket 102 is provided with inserts 2, and a part of the corrugated foil unit 1 is shown. The small black spots on the top foil 3 are shown as welding spots for laser welding.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art. The invention is not described in detail, but is common general knowledge or prior art in the technical field.
Claims (9)
1. The utility model provides a be suitable for bearing frame of assembling insert, includes discoid bearing frame body (100), offers air bearing mounting groove (104) on the quotation of bearing frame body (100), the axial lead of air bearing mounting groove (104) and the axial lead collineation of bearing frame body (100), its characterized in that: the bottom wall of the air bearing mounting groove (104) extends upwards to form N fan-shaped body bosses (106) with the same shape, a fan-shaped bearing seat embedding groove (108) is formed in the straight edge of one side, close to each body boss (106), of each body boss, and a screw through hole (109) is formed in the middle of the bottom of each bearing seat embedding groove (108); n is more than or equal to 3.
2. A housing adapted for receiving an insert according to claim 1 wherein: a bearing seat air guide channel (107) is formed between the body boss (106) and the side wall of the air bearing installation groove (104) and between adjacent body bosses (106).
3. A housing adapted for receiving an insert according to claim 1 wherein: a main shaft hole (101) is formed in the center of the bearing seat body (100), and a key groove (102) is formed in the side wall of the main shaft hole (101); an annular air guide groove (103) is formed in the disc surface of the bearing seat body (100) and close to the edge of the disc surface, the annular air guide grooves (103) are alternate with the air bearing installation grooves (104), and N air guide holes (105) with openings in the circumferential circular surface of the bearing seat body (100) penetrate through the annular air guide grooves (103) and the air bearing installation grooves (104).
4. An air bearing of a bearing housing adapted to receive an insert according to any one of claims 1 to 3 wherein: comprises that
A top foil (3);
one side of each wave foil monomer (1) extends outwards with the same curvature to form a non-wave band (11), and the non-wave band (11) is provided with 1 wave foil through hole (12) which is similar to the shape of the bearing seat embedding groove (108);
the top surface of each insert (2) extends upwards to form an insert bulge (22) with the shape similar to that of the bearing seat insert groove (108), and the height of the insert bulge (22) is larger than or equal to the thickness of the bump foil monomer (1); a screw hole (21) is formed in the middle of the insert (2) along the vertical direction; n inserts (2) are respectively placed into the N bearing seat embedding grooves (108);
n screws respectively penetrate through screw through holes (109) on the back of the bearing seat body (100) and then are in threaded connection with the screw holes (21);
the N corrugated foil single bodies (1) are respectively sleeved on the N embedded blocks (2) through the corrugated foil through holes (12) on the corrugated foil single bodies;
the top end of each insert (2) and/or the top end of the insert bulge (22) are fixedly connected with the top foil (3) through spot welding.
5. A housing adapted for receiving an insert according to claim 4 wherein: the top foil (3) comprises N top foil single bodies (31), each top foil single body (31) comprises a fixed section (311), an abutting section (312) higher than the fixed section (311), and a turning section (313) which integrally connects the fixed section (311) and the abutting section (312), and the distance between the lower surface of the fixed section (311) and the lower surface of the abutting section (312) is smaller than the wave height of the wave foil single body (1); the fixing sections (311) of the N top foil single bodies (31) are fixedly connected with the top ends of the N inserts (2) and/or the top ends of the insert bulges (22) through laser spot welding.
6. A housing adapted for receiving an insert according to claim 4 wherein: the top foil (3) comprises N top foil single bodies (31), and every two adjacent top foil single bodies (31) are connected into a whole through a waveform tying band (32) to form a ring; the same side edges of the N top foil single bodies (31) are fixedly connected with the top ends of the N inserts (2) and/or the top ends of the insert bulges (22) through laser spot welding.
7. A housing adapted for receiving an insert according to claim 6 wherein: the wave-shaped lace (32) comprises an inner lace (321) close to the inner ring and an outer lace (322) close to the outer ring.
8. A housing adapted for receiving an insert according to claim 4 wherein: the N inserts (2) are in transition fit or clearance fit with the N bearing seat insert grooves (108) respectively and are bonded through high-temperature-resistant glue.
9. A housing adapted for receiving an insert according to claim 4 wherein: the height of the insert (2) is greater than the depth of the insert groove (108) of the bearing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210532931.0A CN114941657B (en) | 2022-05-17 | 2022-05-17 | Bearing pedestal suitable for assembling insert and air bearing based on bearing pedestal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210532931.0A CN114941657B (en) | 2022-05-17 | 2022-05-17 | Bearing pedestal suitable for assembling insert and air bearing based on bearing pedestal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114941657A true CN114941657A (en) | 2022-08-26 |
| CN114941657B CN114941657B (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210532931.0A Active CN114941657B (en) | 2022-05-17 | 2022-05-17 | Bearing pedestal suitable for assembling insert and air bearing based on bearing pedestal |
Country Status (1)
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| CN (1) | CN114941657B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090028701A1 (en) * | 2007-07-24 | 2009-01-29 | Ting-Wei Hsu | Fan bearing structure |
| CN101463868A (en) * | 2009-01-14 | 2009-06-24 | 西安交通大学 | Kinetic pressure gas thrust bearing with axial support |
| WO2013018505A1 (en) * | 2011-08-01 | 2013-02-07 | 株式会社Ihi | Radial foil bearing |
| JP2013053645A (en) * | 2011-09-01 | 2013-03-21 | Ntn Corp | Thrust foil bearing |
| US20140199006A1 (en) * | 2013-01-16 | 2014-07-17 | Korea Institute Of Machinery & Materials | Thrust bearing and combo bearing |
| CN105443571A (en) * | 2015-12-26 | 2016-03-30 | 广东瑞荣泵业有限公司 | Water-lubricating thrust bearing of submersible motors for wells |
| US20160091016A1 (en) * | 2014-09-26 | 2016-03-31 | Hamilton Sundstrand Corporation | Thrust bearing assembly |
| CA2930865A1 (en) * | 2015-05-21 | 2016-11-21 | Summit Esp, Llc | Thrust bearing surface for floater-style centrifugal pumps |
| EP3179119A1 (en) * | 2015-12-11 | 2017-06-14 | Hamilton Sundstrand Corporation | Thrust bearing assembly with flow path restriction |
| CN108253013A (en) * | 2017-12-13 | 2018-07-06 | 湖南大学 | It is a kind of can adaptively and with high bearing capacity thrust air foil bearing |
| CN207652187U (en) * | 2017-12-06 | 2018-07-24 | 广州市昊志机电股份有限公司 | A kind of electro spindle |
| WO2019004287A1 (en) * | 2017-06-27 | 2019-01-03 | 株式会社Ihi | Radial foil bearing |
| CN109764057A (en) * | 2019-02-01 | 2019-05-17 | 西安交通大学 | A kind of multi stage resilient supporting mechanism and kinetic pressure gas thrust bearing |
| CN110030269A (en) * | 2019-04-24 | 2019-07-19 | 上海捷氢科技有限公司 | Elastic foil gas bearing and elastic foil gas bearing friction are secondary |
| CN111795062A (en) * | 2020-07-21 | 2020-10-20 | 石家庄金士顿轴承科技有限公司 | Radial foil dynamic pressure air bearing |
-
2022
- 2022-05-17 CN CN202210532931.0A patent/CN114941657B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090028701A1 (en) * | 2007-07-24 | 2009-01-29 | Ting-Wei Hsu | Fan bearing structure |
| CN101463868A (en) * | 2009-01-14 | 2009-06-24 | 西安交通大学 | Kinetic pressure gas thrust bearing with axial support |
| WO2013018505A1 (en) * | 2011-08-01 | 2013-02-07 | 株式会社Ihi | Radial foil bearing |
| JP2013053645A (en) * | 2011-09-01 | 2013-03-21 | Ntn Corp | Thrust foil bearing |
| US20140199006A1 (en) * | 2013-01-16 | 2014-07-17 | Korea Institute Of Machinery & Materials | Thrust bearing and combo bearing |
| US20160091016A1 (en) * | 2014-09-26 | 2016-03-31 | Hamilton Sundstrand Corporation | Thrust bearing assembly |
| CA2930865A1 (en) * | 2015-05-21 | 2016-11-21 | Summit Esp, Llc | Thrust bearing surface for floater-style centrifugal pumps |
| EP3179119A1 (en) * | 2015-12-11 | 2017-06-14 | Hamilton Sundstrand Corporation | Thrust bearing assembly with flow path restriction |
| CN105443571A (en) * | 2015-12-26 | 2016-03-30 | 广东瑞荣泵业有限公司 | Water-lubricating thrust bearing of submersible motors for wells |
| WO2019004287A1 (en) * | 2017-06-27 | 2019-01-03 | 株式会社Ihi | Radial foil bearing |
| CN207652187U (en) * | 2017-12-06 | 2018-07-24 | 广州市昊志机电股份有限公司 | A kind of electro spindle |
| CN108253013A (en) * | 2017-12-13 | 2018-07-06 | 湖南大学 | It is a kind of can adaptively and with high bearing capacity thrust air foil bearing |
| CN109764057A (en) * | 2019-02-01 | 2019-05-17 | 西安交通大学 | A kind of multi stage resilient supporting mechanism and kinetic pressure gas thrust bearing |
| CN110030269A (en) * | 2019-04-24 | 2019-07-19 | 上海捷氢科技有限公司 | Elastic foil gas bearing and elastic foil gas bearing friction are secondary |
| CN111795062A (en) * | 2020-07-21 | 2020-10-20 | 石家庄金士顿轴承科技有限公司 | Radial foil dynamic pressure air bearing |
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| Publication number | Publication date |
|---|---|
| CN114941657B (en) | 2023-05-23 |
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