CN112160988A - Squeeze film damper, thrust bearing using same and use method of thrust bearing - Google Patents
Squeeze film damper, thrust bearing using same and use method of thrust bearing Download PDFInfo
- Publication number
- CN112160988A CN112160988A CN202011097099.3A CN202011097099A CN112160988A CN 112160988 A CN112160988 A CN 112160988A CN 202011097099 A CN202011097099 A CN 202011097099A CN 112160988 A CN112160988 A CN 112160988A
- Authority
- CN
- China
- Prior art keywords
- porous
- thrust bearing
- end plate
- squeeze film
- thrust
- 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
Links
Images
Classifications
-
- 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
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
- F16C32/0614—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings
- F16C32/0618—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings via porous material
-
- 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
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- F16C27/08—Elastic or yielding bearings or bearing supports, for exclusively rotary movement primarily for axial load, e.g. for vertically-arranged shafts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Support Of The Bearing (AREA)
Abstract
The invention relates to a squeeze film damper, a thrust bearing using the same and a use method of the thrust bearing. The squeeze film damper comprises a compressible shell and a plunger arranged in the shell, wherein an oil film is arranged in a gap between the shell and the plunger; the thrust bearing utilizing the squeeze film damper at least comprises one squeeze film damper, the squeeze film damper is arranged between a working end plate and a fixed end plate of the thrust bearing, and the thrust bearing increases damping by compressing the damper and reduces axial load. During the use, at first install the pivot that the cover was equipped with the thrust plate in thrust bearing's centre bore, drive the thrust plate extrusion when the pivot rotates thrust bearing, thrust bearing makes the oil film reciprocating motion in the squeeze film damper through compressing the squeeze film damper to increase thrust bearing at axial damping, reduce the impact of axial load to pivot and thrust bearing.
Description
Technical Field
The invention relates to an extrusion oil film damper.
The invention also relates to a thrust bearing using the squeeze film damper and a use method of the thrust bearing.
Background
In the known mechanical transmission mechanism, due to the influence of manufacturing accuracy or other resistance, the mechanical transmission mechanism may be displaced in an axial or radial direction in addition to a specified movement mode, so that collision impact occurs between components, and equipment is damaged.
In order to solve the above problems, in the prior art, dampers are provided on these mechanical transmission mechanisms, and the dampers consume energy generated by impact vibration through various friction and other blocking effects of free vibration attenuation, at present, hydraulic dampers, pulse dampers, squeeze film dampers, etc. are commonly used, and the dampers can be selected and adapted according to the motion mode of the mechanical mechanism or the magnitude of the impact load; the squeeze film damper is a damper with good damping effect and is often matched with a thrust bearing, axial shifting can occur when a rotor rotates at high speed, axial impact load is generated on the thrust bearing, and lubricating oil of the squeeze film damper can absorb the generated energy through reciprocating vibration so as to improve the stability of the thrust bearing.
Chinese utility model patent application publication CN103842668A discloses a squeeze film damper, which comprises a bearing box, a housing accommodating the bearing box therein, and a squeeze film in the gap between the housing and the bearing box, wherein the squeeze film is used to generate a damping force directed opposite to the surrounding radial excitation force generated by the imbalance maintained in the bearing box, the squeeze film in the invention is arranged in the gap between the bearing box housing and the bearing box, and can effectively absorb the radial impact load of the bearing and the generated energy.
The squeeze film in the squeeze film damper is arranged in a gap between the shell and the bearing box, and has a certain damping effect through the reciprocating motion of lubricating oil, but the damping provided by the middle mode only consumes the energy generated by impact through the viscous action and the reciprocating motion of the lubricating oil, the damping effect provided by the middle mode is limited, and the energy generated by the axial vibration of the rotor cannot be consumed for a mechanical mechanism at megawatt level.
The Chinese utility model patent application publication No. CN103842668A discloses a gas thrust bearing and power equipment, wherein the gas thrust bearing comprises a bearing base, a porous layer and an elastic cushion layer, the bearing base comprises an annular base body, the porous layer is arranged on the axial first side of the annular base body, and a gas film is generated in the gap between the porous layer and a thrust plate after gas flows out of the porous layer to provide damping for the bearing; the elastic cushion layer is arranged on the second axial side of the annular base body and has elasticity, extra damping can be provided for the bearing, and vibration energy of the rotor is absorbed, so that vibration of the rotor in the axial direction is reduced, and the stability of shafting operation is improved.
The gas thrust bearing is a gas static pressure thrust bearing, and bears the axial impact load generated by the rotor in a mode of generating a gas film in a gap between a porous structure and a rotor thrust plate, so that the friction force between the thrust bearing and the rotor is reduced, and the stability of the device is improved; however, the damping effect provided by the air film is limited and not as good as the damping effect provided by the squeeze film.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a squeeze film damper with larger damping, and the squeeze film damper can be suitable for megawatt-level mechanical mechanisms.
Another technical problem to be solved by the present invention is to provide a thrust bearing using the squeeze film damper.
Another technical problem to be solved by the present invention is to provide a method for using the thrust bearing.
The invention provides a squeeze film damper, which comprises a compressible shell; a cavity within the housing; and gaps are formed among the plunger arranged in the cavity, the compressible shell and the plunger, and oil films are arranged on the gaps.
Adopt the squeeze film damper of above-mentioned structure, at casing and the plunger formation clearance of setting in the casing cavity, the lubricating oil flows in and forms the oil film in the clearance, and the casing is compressible moreover, and the casing produces elastic deformation when being compressed, can provide bigger damping for mechanical mechanism, and oil film wherein can be compressed simultaneously moreover, and the bigger reciprocating motion of amplitude is shaken in the emergence, consumes the produced energy of impact collision.
Further, wherein the casing is the solid of revolution, the plunger for with the solid of revolution of casing internal cavity shape adaptation, the structure of above-mentioned solid of revolution is favorable to adopting 3D to print the shaping, reduces the preparation degree of difficulty of casing.
Furthermore, the shell is provided with an oil inlet which leads to the cavity, so that high-concentration lubricating oil can be poured into a gap between the shell and the plunger conveniently to form an oil film.
Further, the housing is made of an elastic material, and the elastic material for making the damper housing may be: aluminum alloys, 45 steel, spring steel, and the like. When the shell is compressed, the shell can generate corresponding elastic deformation, and the energy generated by load impact is consumed.
The invention further provides a thrust bearing utilizing the squeeze film damper, which comprises at least one squeeze film damper and a bearing base body, wherein the bearing base body comprises a working end plate, a fixed end plate and a central hole formed in the centers of the working end plate and the fixed end plate, one end of the squeeze film damper is fixedly connected to the working end plate, and the other end of the squeeze film damper is fixedly connected to the fixed end plate.
The thrust bearing is provided with the squeeze film damper between the working end plate and the fixed end plate, when the working end plate receives an axial load, the working end plate moves towards the fixed end plate to compress the squeeze film damper, the squeeze film damper improves the damping of the thrust bearing through elastic deformation and oil film reciprocating motion in the squeeze film damper, and the rotation stability of a rotor arranged in the thrust bearing is improved.
The working end plate further comprises an external vent hole and a porous air supply hole communicated with the external vent hole, the porous air supply hole is arranged on a porous mounting groove, the porous mounting groove is arranged on one surface, far away from the fixed end plate, of the working end plate, a porous body is mounted on the porous mounting groove, and the porous body covers the porous air supply hole.
The thrust bearing is provided with a porous surface on one surface of the working end plate opposite to the rotor, and because a large number of tiny air holes are distributed in the porous material, an external air source enters the surface of the bearing through the porous surface to form a pressure air film for supporting load.
The invention further provides a use method of the thrust bearing, which comprises the following steps: 1. sleeving a rotating shaft connected with the thrust bearing with a thrust plate and installing the rotating shaft in a central hole on the thrust bearing; 2. when the rotating shaft rotates, the thrust plate is driven to axially extrude the thrust bearing, the thrust bearing compresses an extrusion oil film damper in the thrust bearing, an oil film in the extrusion oil film damper is extruded, and hydraulic oil forming the oil film generates reciprocating motion.
Furthermore, the working end plate is provided with an external vent hole and a porous air supply hole communicated with the external vent hole, the porous air supply hole is provided with a porous mounting groove, the porous mounting groove is arranged on one surface of the working end plate far away from the fixed end plate, and the porous mounting groove is provided with a porous material which covers the porous air supply hole; a porous member opposing the thrust plate; high-pressure gas is introduced into the external vent hole, flows through the porous gas supply hole and the porous material covering the porous gas supply hole, enters between the porous material and the thrust plate, forms a gas film between the porous material and the thrust plate, and finally flows through the edge of the porous material and the thrust plate to enter the atmosphere.
The thrust bearing using method is suitable for the thrust bearing axial load, firstly, an air film formed in a gap between a thrust plate and a porous body has the function of axial support, then, when the thrust bearing bears the axial load, a working end plate compresses a squeeze film damper, a squeeze film shell generates elastic deformation, and lubricating oil in the squeeze film shell vibrates in a reciprocating mode, so that the impact resistance of the thrust bearing is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a front view of a squeeze film damper of the present invention;
FIG. 2 is a cross-sectional view of a squeeze film damper of the present invention;
FIG. 3 is a top view of a squeeze film damper of the present invention;
FIG. 4 is a top view of a thrust bearing of the present invention;
FIG. 5 is a left side view of the thrust bearing of the present invention;
FIG. 6 is a top view of a thrust bearing of the present invention with the working end plate removed;
FIG. 7 is a bottom view of the thrust bearing of the present invention with the working end plate removed;
FIG. 8 is a top view of the thrust bearing working end plate of the present invention;
FIG. 9 is a bottom plan view of the thrust bearing working end plate of the present invention;
description of reference numerals: 1-squeeze film dampers; 2-a shell; 3-a plunger; 4-oil film; 5-an oil inlet; 6-bolt hole; 7-working end plate; 71-external vent; 72-porous air supply hole; 73-porous mounting groove; 74-porous; 8-fixing the end plate; 9-center hole.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-3, the present invention provides a squeeze film damper 1 comprising a compressible housing 2; a cavity within the housing 2; a gap exists between the plunger 3 arranged in the cavity, the compressible housing 2 and the plunger 3, and an oil film 4 is arranged on the gap.
In the embodiment, the shell 2 is made of a compressible material and can deform under the extrusion action of external force, so as to generate a larger damping effect; the plunger 3 is arranged in the cavity, a gap is formed between the plunger 2 and the shell 2, lubricating oil forms an oil film 4 in the gap, and when the plunger is impacted or the shell is extruded, the oil film 4 reciprocates in the gap to consume energy generated by impact, so that the stability of a mechanical structure is ensured.
Specifically, the housing 2 is a revolving body structure which is beneficial to being manufactured by a 3D printing method, a cavity is formed in the housing 2, the plunger 3 is a revolving body matched with the shape of the cavity in the housing 2, after the plunger 3 is installed in the cavity, a gap is directly formed between the plunger 3 and the inner wall of the housing 2, an oil inlet 5 is formed in the center of the upper surface of the housing 2, the oil inlet 5 penetrates through the upper surface of the housing 2 and is communicated with the gap in the cavity, and lubricating oil poured from the oil inlet 5 flows into the gap between the plunger 3 and the housing 2, so that an extrusion oil film 4 is formed; the upper surface and the lower surface of the shell 2 are provided with three bolt holes 6 which are uniformly distributed along the circumferential direction.
Preferably, the housing 2 is made of an elastic material, and the elastic material for making the damper housing may be: aluminum alloys, 45 steel, spring steel, and the like. The shell 2 needs to be capable of resetting and rebounding after being compressed, the shell 2 also has certain rigidity and fatigue resistance, and the shell 2 can be prevented from being damaged under the reciprocating compression and rebounding effects.
As shown in fig. 4, the invention provides a thrust bearing using the squeeze film damper 1, which comprises at least one squeeze film damper 1 and a bearing base body, wherein the bearing base body comprises a working end plate 7, a fixed end plate 8 and a central hole 9 formed in the centers of the working end plate 7 and the fixed end plate 8, one end of the squeeze film damper 1 is fixedly connected to the working end plate 7, and the other end of the squeeze film damper is fixedly connected to the fixed end plate 8.
In this embodiment, the thrust bearing includes a working end plate 7 and a fixed end plate 8, the squeeze film damper 1 is fixedly installed between the working end plate 7 and the fixed end plate 8, one side of the working end plate 7 is impacted by an axial direction and then compresses the squeeze film damper 1, and the squeeze film damper 1 improves the damping of the thrust bearing through the deformation of the housing 2 and the reciprocating motion of the oil film 4.
As shown in fig. 5, specifically, the working end plate 7 and the fixed end plate 8 are both circular ring structures with a central hole 9 in the middle, and are arranged opposite to each other, 5 squeeze film dampers 1, 5 are arranged between the working end plate 7 and the fixed end plate 8, and are uniformly distributed along the circumferential direction of the working end plate 7 and the fixed end plate 8, and are respectively and fixedly connected with the working end plate 7 and the fixed end plate 8 through bolts, and the oil inlet 5 of the squeeze film damper 1 is abutted against the working end plate 7 or the fixed surface, so as to form a closed structure, and the squeeze film damper 1 can reciprocate back and forth in the gap without spilling.
As shown in fig. 8 and fig. 9, preferably, the working end plate 7 includes an external vent hole 71 provided on a side wall thereof, and a porous air supply hole 72 communicated with the external vent hole 71, the porous air supply hole 72 is provided on a porous mounting groove 73, the porous mounting groove 73 is a circular ring structure concentric with the central hole 9, and is provided on a side of the working end plate 7 away from the fixed end plate 8, the porous mounting groove 73 is provided with a porous 74 matched therewith, and the porous 74 covers the porous air supply hole 72; the side of the working end plate 7 far away from the fixed end plate 8 is opposite to the thrust plate sleeved on the rotating shaft, a gap is arranged between the working end plate and the thrust plate, an external air source flows through the porous air supply hole 72 and the porous air 74 through the external air vent, and an air film with a supporting load effect is formed in the gap between the porous air supply hole 74 and the thrust plate.
Aiming at the thrust bearing, the invention provides a using method of the thrust bearing, which comprises the following steps:
s1: sleeving a rotating shaft connected with the thrust bearing with a thrust plate and installing the rotating shaft in a central hole 9 on the thrust bearing;
s2: when the rotating shaft rotates, the thrust plate is driven to axially extrude the thrust bearing, the thrust bearing compresses the extrusion oil film damper 1 in the thrust bearing, the oil film 4 in the extrusion oil film damper 1 is extruded, and hydraulic oil forming the oil film 4 generates reciprocating motion.
Specifically, install the pivot that is equipped with the thrust plate in footstep bearing's centre bore 9, the thrust plate be with work end plate 7 assorted annular structure, and relative setting, it has certain small clearance to reserve, and the pivot begins to rotate the back, takes place axial drunkenness, and is right work end plate 7 produces axial impact, and work end plate 7 extrudees and establishes squeeze film damper 1 between work end plate 7 and fixed end plate 8, and the shell deformation through squeeze film damper 1 slows down the energy of impact with the motion of inside lubricating oil.
The working end plate 7 is provided with an external vent hole 71 and a porous air supply hole 72 communicated with the external vent hole 71, the porous air supply hole 72 is provided with a porous mounting groove 73, the porous mounting groove 73 is arranged on one surface of the working end plate 7 far away from the fixed end plate 8, the porous mounting groove 73 is provided with a porous material 74, and the porous material 74 covers the porous air supply hole 72; the porous 74 is opposite to the thrust plate; high-pressure gas is introduced into the external vent hole 71, flows through the porous gas supply hole 72 and the porous film 74 covering the porous gas supply hole 72, enters between the porous film 74 and the thrust plate, forms a gas film between the porous film 74 and the thrust plate, and finally flows through the edges of the porous film 74 and the thrust plate to enter the atmosphere.
When the rotating shaft rotates, a layer of gas film with bearing capacity is formed in a gap between the porous 74 and the thrust plate, the thickness of the gas film is obviously influenced by the bearing capacity, when the external load is increased, the thickness of the gas film is reduced, so that the space where the gas flows out from the gap of the bearing is compressed, the flow resistance of the gas flow is increased, the flow speed of the gas is reduced, the reduction of the gas flow also causes the reduction of the pressure drop generated by the gas passing through the porous 74, so that the gas pressure after the hole is increased, and the bearing capacity is increased; on the contrary, the external load is reduced, the thickness of the air film is increased, the airflow resistance is reduced, the airflow velocity is increased, and the bearing capacity is reduced; the air film bearing capacity is limited, when the external load is overlarge, the working end plate 7 can compress the squeeze film damper 1 under the action of the load, the impact energy caused by the external load is relieved through the squeeze film damper 1, and the thrust bearing has better load bearing capacity through the direct air film bearing of the porous 74 and the thrust plate and the damping effect of the squeeze film damper 1.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (8)
1. A squeeze film damper, characterized by: comprising a compressible housing (2); a cavity within the housing (2); a gap is formed among the plunger (3) arranged in the cavity, the compressible shell (2) and the plunger (3), and an oil film (4) is arranged in the gap.
2. A squeeze film damper according to claim 1 wherein said housing (2) is a body of revolution and said plunger (3) is a body of revolution adapted to the shape of the internal cavity of said housing (2).
3. A squeeze film damper according to claim 1 wherein the housing (2) is provided with an oil inlet (5) to the cavity.
4. A squeeze film damper according to claim 1 wherein said housing (2) is made of an elastic material.
5. A thrust bearing utilizing the squeeze film damper of any one of claims 1-4, wherein: including at least one squeeze film attenuator (1), bearing substrate, the bearing substrate includes work end plate (7) and fixed end plate (8) and sets up centre bore (9) at work end plate (7) and fixed end plate (8) center, the one end fixed connection of squeeze film attenuator (1) is on work end plate (7), and other end fixed connection is on fixed end plate (8).
6. The thrust bearing of claim 5, wherein: the working end plate (7) comprises an external vent hole (71) and a porous air supply hole (72) communicated with the external vent hole (71), the porous air supply hole (72) is arranged on a porous mounting groove (73), the porous mounting groove (73) is arranged on one surface, far away from the fixed end plate (8), of the working end plate (7), a porous body (74) is mounted on the porous mounting groove (73), and the porous body (74) covers the porous air supply hole (72).
7. A method of using the thrust bearing of claim 5, comprising the steps of:
s1: sleeving a rotating shaft connected with the thrust bearing with a thrust plate and installing the rotating shaft in a central hole (9) on the thrust bearing;
s2: when the rotating shaft rotates, the thrust plate is driven to axially extrude the thrust bearing, the thrust bearing compresses the extrusion oil film damper (1) in the thrust bearing, an oil film (4) in the extrusion oil film damper (1) is extruded, and hydraulic oil forming the oil film (4) generates reciprocating motion.
8. The method of using the thrust bearing of claim 9: the method is characterized in that: the working end plate (7) is provided with an external vent hole (71) and a porous air supply hole (72) communicated with the external vent hole (71), the porous air supply hole (72) is arranged on a porous mounting groove (73), the porous mounting groove (73) is arranged on one surface of the working end plate (7) far away from the fixed end plate (8), a porous material (74) is mounted on the porous mounting groove (73), and the porous material (74) covers the porous air supply hole (72); a porous (74) opposite the thrust plate; high-pressure gas is introduced into the external vent hole (71), flows through the porous gas supply hole (72) and the porous layer (74) covering the porous gas supply hole (72), enters between the porous layer (74) and the thrust plate, forms a gas film between the porous layer (74) and the thrust plate, and finally flows through the porous layer (74) and the edge of the thrust plate to enter the atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011097099.3A CN112160988B (en) | 2020-10-14 | 2020-10-14 | Squeeze film damper, thrust bearing using same and use method of thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011097099.3A CN112160988B (en) | 2020-10-14 | 2020-10-14 | Squeeze film damper, thrust bearing using same and use method of thrust bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112160988A true CN112160988A (en) | 2021-01-01 |
| CN112160988B CN112160988B (en) | 2021-12-24 |
Family
ID=73868227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011097099.3A Active CN112160988B (en) | 2020-10-14 | 2020-10-14 | Squeeze film damper, thrust bearing using same and use method of thrust bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112160988B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058457A (en) * | 1990-04-30 | 1992-02-05 | 罗素·D·艾迪 | Hydrodynamic bearing with the continuous beam on mounting support surface |
| CA2079015A1 (en) * | 1992-03-05 | 1993-09-06 | Russell D. Ide | Self positioning beam mounted bearing and bearing and shaft assembly including the same |
| US5620260A (en) * | 1987-05-29 | 1997-04-15 | Ide; Russell D. | Variable characteristic thrust bearing |
| DE102007023244A1 (en) * | 2007-05-18 | 2008-11-20 | Schaeffler Kg | Rotary table bearings |
| RU2360154C2 (en) * | 2007-06-13 | 2009-06-27 | Открытое Акционерное Общество "Производственное объединение "Электрохимический завод" (ОАО "ПО ЭХЗ") | Vertical rotor support |
| EP2110519A2 (en) * | 2008-04-16 | 2009-10-21 | Rolls-Royce plc | A squeeze-film damper arrangement |
| CN101749322A (en) * | 2008-12-05 | 2010-06-23 | 通用电气公司 | Self-adapting mixed gas radial journal bearing using integral silk net damper |
| WO2011156133A2 (en) * | 2010-06-07 | 2011-12-15 | National Oilwell Varco. L.P. | Fluid-supported thrust bearing |
| US20120020595A1 (en) * | 2007-04-13 | 2012-01-26 | Jongsoo Kim | Compliant Bearing |
| CN202170929U (en) * | 2011-07-19 | 2012-03-21 | 华中科技大学 | Resonance converter for marine thrust bearing |
| CN102788113A (en) * | 2012-07-18 | 2012-11-21 | 中国船舶重工集团公司第七○二研究所 | Squeeze film damper for transmission shafting |
| CN103842668A (en) * | 2011-08-23 | 2014-06-04 | 舍弗勒技术有限两合公司 | Squeeze film damper |
| WO2015054447A1 (en) * | 2013-10-11 | 2015-04-16 | General Electric Company | Hermetically sealed damper assembly and method of assembling same |
| US20150345556A1 (en) * | 2012-06-28 | 2015-12-03 | Outotec (Finland) Oy | Fluid bearings |
| US20170298766A1 (en) * | 2016-04-18 | 2017-10-19 | General Electric Company | Thrust bearing |
| CN111005937A (en) * | 2018-10-04 | 2020-04-14 | 三菱重工业株式会社 | Squeeze film damper and rotary machine |
| CN211398290U (en) * | 2020-01-09 | 2020-09-01 | 珠海格力电器股份有限公司 | Gas thrust bearing and power equipment |
-
2020
- 2020-10-14 CN CN202011097099.3A patent/CN112160988B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5620260A (en) * | 1987-05-29 | 1997-04-15 | Ide; Russell D. | Variable characteristic thrust bearing |
| CN1058457A (en) * | 1990-04-30 | 1992-02-05 | 罗素·D·艾迪 | Hydrodynamic bearing with the continuous beam on mounting support surface |
| CA2079015A1 (en) * | 1992-03-05 | 1993-09-06 | Russell D. Ide | Self positioning beam mounted bearing and bearing and shaft assembly including the same |
| US20120020595A1 (en) * | 2007-04-13 | 2012-01-26 | Jongsoo Kim | Compliant Bearing |
| DE102007023244A1 (en) * | 2007-05-18 | 2008-11-20 | Schaeffler Kg | Rotary table bearings |
| RU2360154C2 (en) * | 2007-06-13 | 2009-06-27 | Открытое Акционерное Общество "Производственное объединение "Электрохимический завод" (ОАО "ПО ЭХЗ") | Vertical rotor support |
| EP2110519A2 (en) * | 2008-04-16 | 2009-10-21 | Rolls-Royce plc | A squeeze-film damper arrangement |
| CN101749322A (en) * | 2008-12-05 | 2010-06-23 | 通用电气公司 | Self-adapting mixed gas radial journal bearing using integral silk net damper |
| WO2011156133A2 (en) * | 2010-06-07 | 2011-12-15 | National Oilwell Varco. L.P. | Fluid-supported thrust bearing |
| CN202170929U (en) * | 2011-07-19 | 2012-03-21 | 华中科技大学 | Resonance converter for marine thrust bearing |
| CN103842668A (en) * | 2011-08-23 | 2014-06-04 | 舍弗勒技术有限两合公司 | Squeeze film damper |
| US20150345556A1 (en) * | 2012-06-28 | 2015-12-03 | Outotec (Finland) Oy | Fluid bearings |
| CN102788113A (en) * | 2012-07-18 | 2012-11-21 | 中国船舶重工集团公司第七○二研究所 | Squeeze film damper for transmission shafting |
| WO2015054447A1 (en) * | 2013-10-11 | 2015-04-16 | General Electric Company | Hermetically sealed damper assembly and method of assembling same |
| US20170298766A1 (en) * | 2016-04-18 | 2017-10-19 | General Electric Company | Thrust bearing |
| CN111005937A (en) * | 2018-10-04 | 2020-04-14 | 三菱重工业株式会社 | Squeeze film damper and rotary machine |
| CN211398290U (en) * | 2020-01-09 | 2020-09-01 | 珠海格力电器股份有限公司 | Gas thrust bearing and power equipment |
Non-Patent Citations (3)
| Title |
|---|
| 于晓东等: "高速重载静压推力轴承润滑性能研究", 《中国机械工程》 * |
| 夏南等: "对挤压油膜阻尼器轴承和旋转机械转子―挤压油膜阻尼器轴承系统动力特性研究的回顾与展望", 《机械强度》 * |
| 杨秋晓等: "挤压油膜阻尼器同步响应设计的分析", 《北华大学学报(自然科学版)》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112160988B (en) | 2021-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3429100B2 (en) | Double head swash plate type compressor | |
| CN110905804A (en) | Scroll compressor having a discharge port | |
| CN112160988B (en) | Squeeze film damper, thrust bearing using same and use method of thrust bearing | |
| CN212360488U (en) | Buffering vibration balance shaft sliding bearing | |
| CN111396451A (en) | Buffering vibration balance shaft sliding bearing and application thereof | |
| CN102192128B (en) | Compressor and refrigerator with the same | |
| CN110630686A (en) | Vortex type squeeze oil film damper | |
| CN113513530B (en) | Porous radial wave foil gas bearing | |
| CN212717044U (en) | Full-oilless air compressor for new energy vehicle | |
| CN211950842U (en) | Axial oil outlet cycloid pump capable of realizing self-fastening | |
| CN114183353A (en) | Support assembly for scroll compressor and scroll compressor | |
| CN208686953U (en) | A kind of engine piston | |
| US4295546A (en) | Torsional vibration dampers | |
| KR101451660B1 (en) | Friction reduce device for hermetic compressor | |
| CN217712932U (en) | Noise reduction structure of pressure-limiting variable vane pump | |
| AU603278B2 (en) | Refrigerant compressor with axial vibration absorption mechanism | |
| CN216554420U (en) | Rotor type compressor and air conditioner | |
| CN114294327A (en) | Closed squeeze film damper with symmetrical structure and porous tilting pad bearing using same | |
| CN112664457B (en) | Rotating shaft supporting device and scroll compressor | |
| CN211778560U (en) | Air bearing comprising self-adaptive elastic material damper | |
| CN212455218U (en) | Air bearing comprising self-adaptive metal damper | |
| CN114109529B (en) | Spring-supported extrusion oil film metal rubber damper | |
| CN217481531U (en) | Shafting balance structure with self-adjusting function, compressor and air conditioner | |
| JPH0113827Y2 (en) | ||
| CN218509950U (en) | High-speed dynamic pressure gas bearing and high-speed dynamic pressure gas bearing pair |
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 | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Jianwei Inventor after: Li Hang Inventor after: Feng Kai Inventor before: Feng Kai Inventor before: Li Hang Inventor before: Wang Jianwei |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |