CN1632331A - Mixed type helical groove dynamical and static pressure gas composite thrust bearing - Google Patents

Mixed type helical groove dynamical and static pressure gas composite thrust bearing Download PDF

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Publication number
CN1632331A
CN1632331A CN200510009632.5A CN200510009632A CN1632331A CN 1632331 A CN1632331 A CN 1632331A CN 200510009632 A CN200510009632 A CN 200510009632A CN 1632331 A CN1632331 A CN 1632331A
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CN
China
Prior art keywords
static pressure
bearing
air
thrust bearing
air feed
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Pending
Application number
CN200510009632.5A
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Chinese (zh)
Inventor
谭久彬
姚绍明
邱丽荣
马洪文
邹丽敏
金鹏
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Harbin Institute of Technology
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Harbin Institute of Technology
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Publication date
Application filed by Harbin Institute of Technology filed Critical Harbin Institute of Technology
Priority to CN200510009632.5A priority Critical patent/CN1632331A/en
Publication of CN1632331A publication Critical patent/CN1632331A/en
Pending legal-status Critical Current

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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
    • F16C17/045—Sliding-contact bearings for exclusively rotary movement for axial load only with grooves in the bearing surface to generate hydrodynamic pressure, e.g. spiral groove thrust bearings
    • 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
    • F16C32/0622—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 nozzles, restrictors
    • 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
    • F16C32/0681—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load
    • F16C32/0692—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for axial load only

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

The invention relates to a mixed type helical groove dynamical and static pressure gas composite thrust bearing, which is high speed, high rigidity, big load and ultraprecise. On the working surface of the thrust bearing, static pressure air-floating air feed point distributed at two sides of the circle respectively opens herringbone dynamical pressure groove. The bearing capacity of the bearing is improved more than 30% compared to the traditional static pressure air-floating bearing in the circumstance of not adding the gas consumption of the air-floating bearing and the bearing rigidity is improved more than 15% compared to the static pressure air-floating bearing.

Description

Mixed type helical groove dynamical and static pressure gas composite thrust bearing
Technical field
The present invention relates to a kind of dynamical and static pressure gas compound thrust bearing, especially ultraprecise, ultra high speed gas lubricated thrust bearing.
Background technique
At present, the pressurized air thrust bearing that uses in the engineering, as: the high speed hydrostatic gas bearing of high speed hydrostatic air supporting electricity main shaft and other purposes, only utilize static pressure air-bearing to come bearing load and rigidity is provided, it is low usually to run into bearing capacity in the middle of practical application, rigidity is little, the problem of poor anti jamming capability, the pressurized air thrust bearing that uses in the engineering do not make full use of bearing capacity that the dynamic pressure effect of high rotating speed or linear velocity can provide and rigidity (the 7th piece-gas bearing .2002 of " mechanical design handbook " second volume the 4th edition, Chemical Industry Press.; The 40 piece of chapter 9 in " mechanical design handbook " Volume Four-gas bearing .2003 second edition, China Machine Press .).
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the above-mentioned technology, the mixed type helical groove dynamical and static pressure gas composite thrust bearing of a kind of high rigidity, high bearing capacity is provided.
For achieving the above object, the technical solution used in the present invention is on the thrust bearing working surface, and static pressure air-bearing air feed point distribution circle both sides have helical dynamic pressure groove.
The helical dynamic pressure groove of described static pressure air-bearing air feed point distribution circle both sides communicates or is obstructed.
The helical dynamic pressure groove outside of described static pressure air-bearing air feed point distribution circle both sides has envelope gas limit or does not have envelope gas limit.
The circumferencial direction of described thrust bearing working surface upper edge static pressure air-bearing air feed point distribution circle has or does not have a plurality of balancing slits that communicate with both sides helical dynamic pressure groove.
Described static pressure air-bearing air feed point is single layout or double layout.
Described static pressure air-bearing air feed point is hole or slit or the hole of filling with the material that has pore.
Described static pressure air-bearing air feed point and dynamic pressure groove on the same working surface or with the corresponding working surface of the working surface that has the dynamic pressure groove on.
The spiral chute dynamic and static pressure composite gas lubricated thrust bearing of the static pressure air-bearing air feed point of described double layout, the helical dynamic pressure groove direction of static pressure air-bearing air feed point both sides is identical or opposite.
The spiral chute dynamic and static pressure composite gas lubricated thrust bearing of the static pressure air-bearing air feed point of described double layout, the helical dynamic pressure groove of 2 row's static pressure air-bearing air feed points communicates or is obstructed.
Advantage of the present invention
(1) bearing load carrying capacity improves more than 30% than traditional static pressure air-floating thrust bearing.
(2) bearing rigidity improves more than 15% than traditional static pressure air-floating thrust bearing.
Description of drawings
Accompanying drawing 1 is that the static pressure air-bearing air feed is put the schematic representation that 3 distribution circle both sides have the helical dynamic pressure groove 2 that does not communicate on thrust bearing working surface 1.
Accompanying drawing 2 is that the static pressure air-bearing air feed is put the schematic representation that 5 distribution circle both sides have the helical dynamic pressure groove 4 that communicates on thrust bearing working surface 6.
Accompanying drawing 3 is that the static pressure air-bearing air feed is put 9 distribution circle both sides and had the helical dynamic pressure groove 7 that does not communicate on thrust bearing working surface 10, and helical dynamic pressure groove 7 outsides have the schematic representation on envelope gas limit 8.
Accompanying drawing 4 is that the static pressure air-bearing air feed is put 13 distribution circle both sides and had the helical dynamic pressure groove 11 that communicates on thrust bearing working surface 14, and helical dynamic pressure groove 11 outsides have the schematic representation on envelope gas limit 12.
Accompanying drawing 5 is that the circumferencial direction that thrust bearing working surface 18 upper edge static pressure air-bearing air feed are put 17 distribution circles has a plurality of balancing slits 15 that communicate with both sides helical dynamic pressure groove 16, and helical dynamic pressure groove 16 outsides do not have the schematic representation on envelope gas limit.
Accompanying drawing 6 is that the circumferencial direction that thrust bearing working surface 23 upper edge static pressure air-bearing air feed are put 22 distribution circles has a plurality of balancing slits 19 that communicate with both sides helical dynamic pressure groove 20, and helical dynamic pressure groove 20 outsides have the schematic representation on envelope gas limit 21.
Accompanying drawing 7 is that the static pressure air-bearing air feed is put 26 double layouts on the thrust bearing working surface 27, helical dynamic pressure groove 25 directions that the static pressure air-bearing air feed is put 26 both sides are identical, the spiral chute 25 of 2 row's static pressure air-bearing air feed points 26 is obstructed, and helical dynamic pressure groove 25 outsides have the schematic representation on envelope gas limit 24.
Accompanying drawing 8 is that the static pressure air-bearing air feed is put 30 double layouts on the thrust bearing working surface 31, helical dynamic pressure groove 29 directions that the static pressure air-bearing air feed is put 30 both sides are opposite, the helical dynamic pressure groove 29 of 2 row's static pressure air-bearing air feed points 30 is obstructed, and helical dynamic pressure groove 29 outsides have the schematic representation on envelope gas limit 28.
Accompanying drawing 9 is that the static pressure air-bearing air feed is put 34 double layouts on the thrust bearing working surface 35, helical dynamic pressure groove 32 directions that the static pressure air-bearing air feed is put 34 both sides are identical, the helical dynamic pressure groove 32 of 2 row's static pressure air-bearing air feed points 34 communicates, and helical dynamic pressure groove 32 outsides have the schematic representation on envelope gas limit 33.
Accompanying drawing 10 is that the static pressure air-bearing air feed is put 38 double layouts on the thrust bearing working surface 36, helical dynamic pressure groove 39 directions that the static pressure air-bearing air feed is put 38 both sides are identical, the helical dynamic pressure groove 39 of 2 row's static pressure air-bearing air feed points 38 communicates, the circumferencial direction of putting 38 distribution circles along the static pressure air-bearing air feed has a plurality of balancing slits 40 that communicate with both sides helical dynamic pressure groove 39, and helical dynamic pressure groove 39 outsides have the schematic representation on envelope gas limit 37.
Accompanying drawing 11 is described static pressure air-bearing air feed point 43 and the schematic representation of helical dynamic pressure groove 42 on same working surface 41.
Accompanying drawing 12 are described static pressure air-bearing air feed points 46 with the working surface 44 corresponding working surfaces that have helical dynamic pressure groove 45 on schematic representation.
Accompanying drawing 13 is that described static pressure air-bearing air feed point is the schematic representation in hole 47.
Accompanying drawing 14 is that described static pressure air-bearing air feed point is the schematic representation in slit 48.
Accompanying drawing 15 is that described static pressure air-bearing air feed point is the schematic representation with the hole 49 of material 50 fillings that have pore.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
By Fig. 1-Figure 15 as can be known, the present invention is: on the thrust bearing working surface, static pressure air-bearing air feed point distribution circle both sides have helical dynamic pressure groove.
The helical dynamic pressure groove of described static pressure air-bearing air feed point distribution circle both sides communicates or is obstructed.
The helical dynamic pressure groove outside of described static pressure air-bearing air feed point distribution circle both sides has envelope gas limit or does not have envelope gas limit.
The circumferencial direction of described thrust bearing working surface upper edge static pressure air-bearing air feed point distribution circle has or does not have a plurality of balancing slits that communicate with both sides helical dynamic pressure groove.
Described static pressure air-bearing air feed point is single layout or double layout.
Described static pressure air-bearing air feed point is hole or slit or the hole of filling with the material that has pore.
Described static pressure air-bearing air feed point and dynamic pressure groove on the same working surface or with the corresponding working surface of the working surface that has the dynamic pressure groove on.
The spiral chute dynamic and static pressure composite gas lubricated thrust bearing of the static pressure air-bearing air feed point of described double layout, the helical dynamic pressure groove direction of static pressure air-bearing air feed point both sides is identical or opposite.
The spiral chute dynamic and static pressure composite gas lubricated thrust bearing of the static pressure air-bearing air feed point of described double layout, the helical dynamic pressure groove of 2 row's static pressure air-bearing air feed points communicates or is obstructed.
Specific embodiment
Embodiment 1:
As shown in Figure 1, the static pressure air-bearing air feed is put 3 distribution circle both sides and is had the helical dynamic pressure groove 2 that does not communicate on thrust bearing working surface 1, and this working surface is equipped with smooth circular flat.
Embodiment 2:
As shown in Figure 2, the static pressure air-bearing air feed is put 5 distribution circle both sides and is had the helical dynamic pressure groove 4 that communicates on thrust bearing working surface 6, and this working surface is equipped with smooth circular flat.
Embodiment 3:
As shown in Figure 3, the static pressure air-bearing air feed is put 9 distribution circle both sides and is had the helical dynamic pressure groove 7 that does not communicate on thrust bearing working surface 10, and helical dynamic pressure groove 7 outsides have envelope gas limit 8, and this working surface is equipped with smooth circular flat.
Embodiment 4:
As shown in Figure 4, the static pressure air-bearing air feed is put 13 distribution circle both sides and is had the helical dynamic pressure groove 11 that communicates on thrust bearing working surface 14, and helical dynamic pressure groove 11 outsides have envelope gas limit 12, and this working surface is equipped with smooth circular flat.
Embodiment 5:
As shown in Figure 5, the circumferencial direction that thrust bearing working surface 18 upper edge static pressure air-bearing air feed are put 17 distribution circles has a plurality of balancing slits 15 that communicate with both sides helical dynamic pressure groove 16, helical dynamic pressure groove 16 outsides do not have envelope gas limit, and this working surface is equipped with smooth circular flat.
Embodiment 6:
As shown in Figure 6, the circumferencial direction that thrust bearing working surface 23 upper edge static pressure air-bearing air feed are put 22 distribution circles has a plurality of balancing slits 19 that communicate with both sides helical dynamic pressure groove 20, helical dynamic pressure groove 20 outsides have envelope gas limit 21, and this working surface is equipped with smooth circular flat.
Embodiment 7:
As shown in Figure 7, the static pressure air-bearing air feed is put 26 double layouts on the thrust bearing working surface 27, helical dynamic pressure groove 25 directions that the static pressure air-bearing air feed is put 26 both sides are identical, the spiral chute 25 of 2 row's static pressure air-bearing air feed points 26 is obstructed, helical dynamic pressure groove 25 outsides have envelope gas limit 24, and this working surface is equipped with smooth circular flat.
Embodiment 8:
As shown in Figure 8, the static pressure air-bearing air feed is put 30 double layouts on the thrust bearing working surface 31, helical dynamic pressure groove 29 directions that the static pressure air-bearing air feed is put 30 both sides are opposite, the helical dynamic pressure groove 29 of 2 row's static pressure air-bearing air feed points 30 is obstructed, helical dynamic pressure groove 29 outsides have envelope gas limit 28, and this working surface is equipped with smooth circular flat.
Embodiment 9:
As shown in Figure 9, the static pressure air-bearing air feed is put 34 double layouts on the thrust bearing working surface 35, helical dynamic pressure groove 32 directions that the static pressure air-bearing air feed is put 34 both sides are identical, the helical dynamic pressure groove 32 of 2 row's static pressure air-bearing air feed points 34 communicates, helical dynamic pressure groove 32 outsides have envelope gas limit 33, and this working surface is equipped with smooth circular flat.
Embodiment 10:
As shown in Figure 10, the static pressure air-bearing air feed is put 38 double layouts on the thrust bearing working surface 36, helical dynamic pressure groove 39 directions that the static pressure air-bearing air feed is put 38 both sides are identical, the helical dynamic pressure groove 39 of 2 row's static pressure air-bearing air feed points 38 communicates, the circumferencial direction of putting 38 distribution circles along the static pressure air-bearing air feed has a plurality of balancing slits 40 that communicate with both sides helical dynamic pressure groove 39, helical dynamic pressure groove 39 outsides have envelope gas limit 37, and this working surface is equipped with smooth circular flat.

Claims (9)

1. spiral chute dynamic and static pressure composite gas lubricated thrust bearing, it is characterized in that: on the thrust bearing working surface, static pressure air-bearing air feed point distribution circle both sides have helical dynamic pressure groove.
2. as claim 1 described spiral chute dynamic and static pressure composite gas lubricated thrust bearing, it is characterized in that: the helical dynamic pressure groove of described static pressure air-bearing air feed point distribution circle both sides communicates or is obstructed.
3. as claim 1 described spiral chute dynamic and static pressure composite gas lubricated thrust bearing, it is characterized in that: the helical dynamic pressure groove outside of described static pressure air-bearing air feed point distribution circle both sides has envelope gas limit or does not have envelope gas limit.
4. as claim 1 described spiral chute dynamic and static pressure composite gas lubricated thrust bearing, it is characterized in that: the circumferencial direction of described thrust bearing working surface upper edge static pressure air-bearing air feed point distribution circle has or does not have a plurality of balancing slits that communicate with both sides helical dynamic pressure groove.
5. as claim 1 described spiral chute dynamic and static pressure composite gas lubricated thrust bearing, it is characterized in that: described static pressure air-bearing air feed point is single layout or double layout.
6. as claim 1 described spiral chute dynamic and static pressure composite gas lubricated thrust bearing, it is characterized in that: described static pressure air-bearing air feed point is hole or slit or the hole of filling with the material that has pore.
7. as claim 1 described spiral chute dynamic and static pressure composite gas lubricated thrust bearing, it is characterized in that: described static pressure air-bearing air feed point and helical dynamic pressure groove on the same working surface or with the corresponding working surface of working surface that has helical dynamic pressure groove on.
8. as the spiral chute dynamic and static pressure composite gas lubricated thrust bearing of the static pressure air-bearing air feed point of claim 5 described double layouts, it is characterized in that: the helical dynamic pressure groove direction of described static pressure air-bearing air feed point both sides is identical or opposite.
9. as the spiral chute dynamic and static pressure composite gas lubricated thrust bearing of the static pressure air-bearing air feed point of claim 5 described double layouts, it is characterized in that: the helical dynamic pressure grooves of described 2 row's static pressure air-bearing air feed points communicate or are obstructed.
CN200510009632.5A 2005-01-18 2005-01-18 Mixed type helical groove dynamical and static pressure gas composite thrust bearing Pending CN1632331A (en)

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Application Number Priority Date Filing Date Title
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101561013B (en) * 2009-05-30 2010-09-01 华中科技大学 Gas bearing posture active control device
CN102261374A (en) * 2011-06-15 2011-11-30 罗立峰 Dynamic pressure gas thrust ceramic bearing
CN102767562A (en) * 2012-07-18 2012-11-07 清华大学 Gas dynamic and static pressure mixed thrust protection bearing for electromagnetic bearing system
CN105202014A (en) * 2015-05-19 2015-12-30 罗立峰 Slot type dynamic pressure gas radial bearing
CN106438702A (en) * 2016-11-22 2017-02-22 江苏工大金凯高端装备制造有限公司 Aerostatic air-floating bearing
CN107269701A (en) * 2017-07-12 2017-10-20 哈尔滨工业大学 A kind of plane air-bearing with air drain
CN107882870A (en) * 2017-11-29 2018-04-06 浙江大学 Bionical Spiral Groove Thrust Bearing
CN110985527A (en) * 2019-12-30 2020-04-10 江苏毅合捷汽车科技股份有限公司 Thrust air dynamic pressure bearing
WO2020096807A1 (en) * 2018-11-05 2020-05-14 Energy Recovery, Inc. System for hybrid hydrodynamic-hydrostatic thrust bearings
CN111853051A (en) * 2019-04-25 2020-10-30 弗罗伊登贝格-诺克普通合伙公司 Hydraulic thrust washer with pumping features for lean lubrication applications

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101561013B (en) * 2009-05-30 2010-09-01 华中科技大学 Gas bearing posture active control device
CN102261374A (en) * 2011-06-15 2011-11-30 罗立峰 Dynamic pressure gas thrust ceramic bearing
CN102767562A (en) * 2012-07-18 2012-11-07 清华大学 Gas dynamic and static pressure mixed thrust protection bearing for electromagnetic bearing system
CN102767562B (en) * 2012-07-18 2015-01-14 清华大学 Gas dynamic and static pressure mixed thrust protection bearing for electromagnetic bearing system
CN105202014A (en) * 2015-05-19 2015-12-30 罗立峰 Slot type dynamic pressure gas radial bearing
CN106438702A (en) * 2016-11-22 2017-02-22 江苏工大金凯高端装备制造有限公司 Aerostatic air-floating bearing
CN107269701A (en) * 2017-07-12 2017-10-20 哈尔滨工业大学 A kind of plane air-bearing with air drain
CN107882870A (en) * 2017-11-29 2018-04-06 浙江大学 Bionical Spiral Groove Thrust Bearing
CN107882870B (en) * 2017-11-29 2024-03-22 浙江大学 Bionic spiral groove thrust bearing
CN113195912A (en) * 2018-11-05 2021-07-30 能量回收股份有限公司 System and method for hybrid hydrodynamic-hydrostatic thrust bearing
US10731702B2 (en) 2018-11-05 2020-08-04 Energy Recovery, Inc. System and method for hybrid hydrodynamic-hydrostatic thrust bearings
WO2020096807A1 (en) * 2018-11-05 2020-05-14 Energy Recovery, Inc. System for hybrid hydrodynamic-hydrostatic thrust bearings
CN113195912B (en) * 2018-11-05 2022-10-04 能量回收股份有限公司 System and method for hybrid hydrodynamic-hydrostatic thrust bearing
CN111853051A (en) * 2019-04-25 2020-10-30 弗罗伊登贝格-诺克普通合伙公司 Hydraulic thrust washer with pumping features for lean lubrication applications
CN111853051B (en) * 2019-04-25 2021-09-14 弗罗伊登贝格-诺克普通合伙公司 Hydraulic thrust washer with pumping features for lean lubrication applications
CN110985527A (en) * 2019-12-30 2020-04-10 江苏毅合捷汽车科技股份有限公司 Thrust air dynamic pressure bearing

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