CN108895086B - A kind of aerostatic bearing with metal-rubber ring - Google Patents
A kind of aerostatic bearing with metal-rubber ring Download PDFInfo
- Publication number
- CN108895086B CN108895086B CN201811103239.6A CN201811103239A CN108895086B CN 108895086 B CN108895086 B CN 108895086B CN 201811103239 A CN201811103239 A CN 201811103239A CN 108895086 B CN108895086 B CN 108895086B
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- Prior art keywords
- metal
- rubber ring
- stator
- sleeve
- axis
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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
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
- Vibration Prevention Devices (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The present invention discloses a kind of aerostatic bearing with metal-rubber ring, is made of axis, stator, end cap, metal-rubber ring, sleeve and quick connector etc..8 threaded holes are evenly equipped on stator to install quick connector, it is corresponding with 8 through-holes on sleeve；It will form two ring-like cavitys after stator and sleeve installation, to fixedly secured metal-rubber ring.When bearing working, there is elastomeric metal-rubber ring can not only suitably reduce system noise, certain vibration damping, vibration isolation can also be played the role of.Compared with prior art, aerostatic bearing of the present invention with metal-rubber ring has the ability of vibration damping, vibration isolation, and vibration, which has been effectively relieved, influences bearing arrangement bring, keeps system operation more stable.
Description
Technical field
The present invention relates to sliding bearing design fields, and in particular to a kind of static air pressure axis with metal-rubber ring
It holds.
Background technique
Aerostatic bearing has the characteristics that high-precision, high efficiency, small friction, high revolving speed, long-life, this technology is close
Extensive utilization has been obtained in the design of new product and used equipment repacking over year.But aerostatic bearing such as designs and improper holds very much
Unstability easily occurs, causes to vibrate, to influence the working performance of whole system.
Therefore it provides a kind of aerostatic bearing with metal-rubber ring, above-mentioned present in the prior art to solve
Disadvantage becomes technical problem now urgently to be resolved.
Summary of the invention
The object of the present invention is to provide a kind of aerostatic bearings with metal-rubber ring, to solve the above-mentioned prior art
There are the problem of, with vibration damping, vibration isolation ability, be effectively relieved vibration on bearing arrangement bring influence, make system operation
It is more stable.
To achieve the above object, the present invention provides following schemes: the present invention provides a kind of sky with metal-rubber ring
Gas static pressure bearing, including axis, stator, metal-rubber ring and sleeve, stator socket on the shaft, and with the shaft clearance
Cooperation；There are two the metal-rubber ring settings, is respectively arranged in the two sides of the stator；The sleeve carrying is placed in two
On the metal-rubber ring；Several the first uniformly distributed threaded holes are circumferentially machined on the external annulus of the stator, for pacifying
Quick connector is filled, the bottom end of first threaded hole has been sequentially communicated throttle orifice and air cavity, and the air cavity is interior with the stator
Ring wall connection, the quick connector are connected to the throttle orifice, air cavity；Several and first spiral shell are provided on the sleeve
Pit corresponding through-hole is separately installed with an end cap in the both ends of the surface of the sleeve.
Preferably, a concave station, two metal-rubber rings point are respectively machined at two shoulder of outer ring of the stator or so
It is not bonded on two concave stations.
Preferably, there are 10 μm of gaps between the axis at the minimum diameter of the stator.
Preferably, it is machined with 8 uniformly distributed first threaded holes on the external annulus of the stator, is corresponded on the sleeve
It is provided with 8 through-holes.
Preferably, the sleeve is circular ring structure, the sleeve and the metal-rubber ring using interference fit.
Preferably, the sleeve is connected by screw to the end cap, and the both ends of the surface of the sleeve are each to be uniformly machined with 8
Second threaded hole, correspondence is evenly equipped with 8 third threaded holes on each end cap, is additionally provided with six in 8 on the end cap
Angle screw sequentially passes through second threaded hole and third threaded hole.
Preferably, the axis hole passed through for the axis is provided on the end cap, the diameter of the axis hole is greater than the axis
Diameter.
The present invention achieves following technical effect compared with the existing technology:
The present invention joined metal-rubber ring structure in aerostatic bearing, can not only suitably reduce system noise,
Vibration damping, vibration isolation can also further be played the role of, compared with prior art, vibration has been effectively relieved, bearing arrangement is brought
Influence, keep system operation more stable.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of general illustration of the aerostatic bearing with metal-rubber ring of the present invention；
Fig. 2 is a kind of cross-sectional view of the aerostatic bearing with metal-rubber ring of the present invention；
Fig. 3 is the structural schematic diagram of stator of the present invention；
Fig. 4 is the structural schematic diagram of sleeve of the present invention；
Fig. 5 is the structural schematic diagram of metal-rubber ring of the present invention；
Fig. 6 is the structural schematic diagram of end cap of the present invention.；
Wherein, axis 1, stator 2, end cap 3, metal-rubber ring 4, sleeve 5, soket head cap screw 6, quick connector 7, the first screw thread
Hole 8, throttle orifice 9, air cavity 10, through-hole 11, the second threaded hole 12, third threaded hole 13, concave station 14.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of aerostatic bearings with metal-rubber ring, to solve the above-mentioned prior art
There are the problem of, with vibration damping, vibration isolation ability, be effectively relieved vibration on bearing arrangement bring influence, make system operation
It is more stable.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Embodiment one
As shown in figures 1 to 6, the present embodiment provides a kind of aerostatic bearings with metal-rubber ring, including axis 1, stator
2, end cap 3, metal-rubber ring 4, sleeve 5 and quick connector 7 etc., stator 2 is socketed on axis 1, and with 1 clearance fit of axis, stator 2
Inner hole minimum diameter between axis 1 there are 10 μm of gap, axis 1 is arranged in inner hole, and runs through stator 2.Metal rubber
There are two the settings of rubber ring 4, is respectively arranged in the two sides of stator 2, is respectively machined with a concave station 14 at 2 outer ring of stator or so, two shoulders,
To place metal-rubber ring 4, two metal-rubber rings 4 are adhesively fixed on respectively on two concave stations 14.Sleeve 5 is an annulus
Structure, carrying are placed on two metal-rubber rings 4, and sleeve 5 and metal-rubber ring 4 are using interference fit.The both ends of the surface of sleeve 5
On be separately installed with an end cap 3, sleeve 5 is coupled with end cap 3 using screw fastening.
Several the first uniformly distributed threaded holes 8 are circumferentially machined on the external annulus of stator 2, for installing quick connector 7,
Quick connector 7 is coupled with stator 2 by threaded screw bore, and static air pressure route is constituted；The bottom end of each first threaded hole 8 successively connects
The throttle orifice 9 and air cavity 10 being arranged in logical one group of stator 2, air cavity 10 are connected to the internal ring wall of stator 2, quick connector 7 and throttling
Hole 9, air cavity 10 are connected to；Several through-holes 11 corresponding with the first threaded hole 8,11 diameter of through-hole are provided on sleeve 5
It need to guarantee to allow quick connector 7 to be directly installed on stator 2 there are enough installation gaps between sleeve 5 and quick connector 7
On, and fixed and protection metal-rubber ring 4 waits bearings internal unit.Specifically, being circumferentially machined on the external annulus of stator 2
8 the first uniformly distributed threaded holes 8 are correspondingly arranged on 8 through-holes 11 on sleeve 5.
Sleeve 5 is connected by screw to end cap 3, and the both ends of the surface of sleeve 5 are each to be uniformly machined with 8 the second threaded holes 12, often
Correspondence is evenly equipped with 8 third threaded holes 13 on a end cap 3, and 8 soket head cap screws 6 are additionally provided on end cap 3 and sequentially pass through the
Two threaded holes 12 and third threaded hole 13, end cap 3 is fixed on sleeve 5.The axis hole passed through for axis 1, axis are provided on end cap 3
The diameter in hole is greater than the diameter of axis 1.
In the static air pressure system of bearing, compressed air is sent in throttle orifice 9 by quick connector 7, by throttle orifice 9 into
One step promotes air pressure and is sent in air cavity 10, is applied on axis 1 and is suspended, and final air is from the gap of axis 1 and stator 2
Middle outflow, takes away partial heat.
The diameter of the present embodiment axis 1 is 30mm, and 2 diameter of stator is 30.02mm, with a thickness of 40mm, uniformly distributed 8 thereon
First threaded hole, 8 diameter 5mm, 9 diameter 2.5mm of throttle orifice, air cavity 10 arc length 7.86mm, wide 10mm, depth 1mm, shaft shoulder concave station
14 diameter 62.02mm, inwardly cut 10mm along axis.5 internal diameter 86mm of sleeve, outer diameter 108mm, thick 40mm, is circumferentially evenly equipped with 8 diameters
For the through-hole 11 of 25mm, to pass through quick connector 7, each uniformly distributed 8 12 diameters of the second threaded hole are 4.2mm in both ends of the surface, deep
8mm.4 internal diameter 54mm of metal-rubber ring, outer diameter 86mm, thick 10mm.3 internal diameter 35mm of end cap, outer diameter 108mm, thick 5mm, in diameter
8 third threaded holes 13 corresponding with sleeve 5, diameter 4.2mm are evenly distributed at 96mm.6 diameter of screw is 5mm.
When the present embodiment middle (center) bearing works, compressed air is quickly pumped into throttle orifice 9 by quick connector 7, then arrives air cavity 10
It is interior, it acts on axis 1, makes its suspension while rotation.When period loads, rigid shock, vibration will be transmitted to stator from axis 1
On 2, then the damping effect through metal-rubber ring 4, rigid shock can weaken significantly, and the contact-impact between axis 1 and stator 2 will be bright
It is aobvious to reduce, to achieve the purpose that vibration damping, vibration isolation.
Specific examples are applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to
According to thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (6)
1. a kind of aerostatic bearing with metal-rubber ring, it is characterised in that: including axis, stator, metal-rubber ring and set
Cylinder, the stator socket on the shaft, and cooperate with the shaft clearance；There are two the metal-rubber ring settings, pacifies respectively
Two sides loaded on the stator, the metal-rubber ring are structure as a whole, and offer multiple holes on the metal-rubber ring；It is described
Sleeve carrying is placed on two metal-rubber rings；It is uniformly distributed that several are circumferentially machined on the external annulus of the stator
First threaded hole, for installing quick connector, the bottom end of first threaded hole has been sequentially communicated throttle orifice and air cavity, the gas
Chamber is connected to the internal ring wall of the stator, and the quick connector is connected to the throttle orifice, air cavity；If being provided on the sleeve
A through-hole corresponding with first threaded hole is done, is separately installed with an end cap, the set in the both ends of the surface of the sleeve
Cylinder is connected by screw to the end cap；
The external annulus of the metal-rubber ring protrudes the external annulus of the stator, and the sleeve is circular ring structure, the sleeve with
The metal-rubber ring is using interference fit.
2. the aerostatic bearing according to claim 1 with metal-rubber ring, it is characterised in that: outside the stator
It is respectively machined with a concave station at two shoulders of circle left and right, two metal-rubber rings are bonded in respectively on two concave stations.
3. the aerostatic bearing according to claim 2 with metal-rubber ring, it is characterised in that: the stator is most
There are 10 μm of gaps between small inner radius and the axis.
4. the aerostatic bearing according to claim 3 with metal-rubber ring, it is characterised in that: outside the stator
It is machined with 8 uniformly distributed first threaded holes on ring wall, is correspondingly arranged on 8 through-holes on the sleeve.
5. the aerostatic bearing according to claim 4 with metal-rubber ring, it is characterised in that: the two of the sleeve
End face is each to be uniformly machined with 8 the second threaded holes, and correspondence is evenly equipped with 8 third threaded holes, the end on each end cap
It covers and is additionally provided with 8 soket head cap screws and sequentially passes through second threaded hole and third threaded hole.
6. the aerostatic bearing according to claim 5 with metal-rubber ring, it is characterised in that: set on the end cap
It is equipped with the axis hole passed through for the axis, the diameter of the axis hole is greater than the diameter of the axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811103239.6A CN108895086B (en) | 2018-09-20 | 2018-09-20 | A kind of aerostatic bearing with metal-rubber ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811103239.6A CN108895086B (en) | 2018-09-20 | 2018-09-20 | A kind of aerostatic bearing with metal-rubber ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108895086A CN108895086A (en) | 2018-11-27 |
| CN108895086B true CN108895086B (en) | 2019-10-01 |
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ID=64360045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811103239.6A Active CN108895086B (en) | 2018-09-20 | 2018-09-20 | A kind of aerostatic bearing with metal-rubber ring |
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| Country | Link |
|---|---|
| CN (1) | CN108895086B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577765B (en) * | 2020-05-22 | 2022-03-15 | 中国科学院工程热物理研究所 | Static pressure type radial gas bearing structure |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53110295A (en) * | 1977-03-08 | 1978-09-26 | Morita Mfg | Driving mechanism of air bearing hand piece for dental surgery |
| EP0262939B1 (en) * | 1986-09-30 | 1993-12-01 | Canon Kabushiki Kaisha | A static pressure gas bearing assembly |
| JP2002295470A (en) * | 2001-03-29 | 2002-10-09 | Ntn Corp | Gas bearing spindle |
| CN2842057Y (en) * | 2005-09-30 | 2006-11-29 | 西安工业学院 | High rigidity gas hydrostatic bearing |
| JP2007170534A (en) * | 2005-12-21 | 2007-07-05 | Ntn Corp | Gas bearing spindle |
| JP5196397B2 (en) * | 2007-11-07 | 2013-05-15 | Ｎｔｎ株式会社 | Hydrostatic gas bearing spindle |
| JP5408613B2 (en) * | 2009-05-07 | 2014-02-05 | Ｎｔｎ株式会社 | Gas bearing spindle |
| CN102861927B (en) * | 2012-09-25 | 2014-07-02 | 西安交通大学 | Super-high-speed electric main shaft sealing structure adopting water lubricating static pressure bearing |
| CN204387108U (en) * | 2014-12-26 | 2015-06-10 | 广州市昊志机电股份有限公司 | A kind of novel air-bearing |
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2018
- 2018-09-20 CN CN201811103239.6A patent/CN108895086B/en active Active
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| CN108895086A (en) | 2018-11-27 |
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