CN207709894U - A kind of composite throttling formula static pressure air-bearing electro spindle - Google Patents
A kind of composite throttling formula static pressure air-bearing electro spindle Download PDFInfo
- Publication number
- CN207709894U CN207709894U CN201820050346.6U CN201820050346U CN207709894U CN 207709894 U CN207709894 U CN 207709894U CN 201820050346 U CN201820050346 U CN 201820050346U CN 207709894 U CN207709894 U CN 207709894U
- Authority
- CN
- China
- Prior art keywords
- end cap
- axle sleeve
- porous material
- axial
- air intake
- 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.)
- Withdrawn - After Issue
Links
- 230000003068 static effect Effects 0.000 title claims abstract description 9
- 239000002131 composite material Substances 0.000 title claims abstract description 8
- 239000011148 porous material Substances 0.000 claims abstract description 57
- 239000000498 cooling water Substances 0.000 claims abstract description 15
- 238000010943 off-gassing Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 4
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
Abstract
A kind of composite throttling formula static pressure air-bearing electro spindle,Including shaft core (1),Axial restraint set (2),Right axle sleeve (3),Orifice restriction air intake duct (4),Main shaft (5),Cooling water inlet channel (6),Motor stator (7),Rotor (8),Radial throttle orifice (9),Radial porous material (10),Left end cap fixing screws (11),Left end cap (12),Axial throttle orifice (13),Axial porous material (14),Porous material throttling air intake duct (15),Left axle sleeve (16),Cooling water outlet road (17),Sealing ring (18),Right end cap fixing screws (19),Right end cap (20),End cap outgassing groove (21),External flange disk (22),Flat key (23),Fixing nut (24),Gas off-take (25),Axle sleeve fixing screws (26),Orifice restriction air intake duct (4) is equipped in the utility model in main shaft (5),Porous material throttling air intake duct (15),By the air pressure for controlling two air intake ducts,Two kinds of throttle styles are made to play a role jointly,Improve the stability of shaft core rotation,Solve the problems, such as that shaft core rotational stability declines.
Description
Technical field：
The present invention relates to a kind of composite throttling formula static pressure air-bearing electro spindle, belongs to ultraprecise pressurized air lubricating area.
Background technology：
Air-bearing is to make lubricant with gas, using the viscosity of gas, improves the pressure of gas in gap, thus by axis
Suspend the bearing of getting up.Compared with conventional oil lubrication bearing, it has, and frictional resistance is extremely low, noise is small, precision is high, long lifespan, fits
With wide temperature range, it is applicable in the good characteristics such as velocity interval is big.Therefore it is widely used in national defence, new energy, lathe and medical treatment
Etc. industries, especially more have apparent superiority in High speed Rotating Mechanical Devices and ultraprecise Instrument technology field.
In the static-pressure air bearing of the prior art, often only with a kind of single throttle style, with orifice restriction or
Based on porous material throttling.Wherein use the air-bearing of orifice restriction mode be aerostatic bearing it is a kind of most typically,
Most popular form, it is easily worked and dynamic stability is very good.The air-bearing to be throttled using porous material
Surface generates more uniform pressure distribution, to very high bearing capacity and static rigidity and with good dynamic
Stability.
In the static-pressure air bearing of hole throttle type, shaft core high speed rotation so that shaft core is produced with the gas in bearing clearance
, that is, there is diverging flow in raw additional circumferential flow, to generate the problems such as pressure is uneven, stability declines.In addition to this, exist
When air-bearing is by extraneous percussion, it is easy to destroy the stationarity that main shaft is in the state that runs at high speed, meeting when serious
So that main shaft stops operating, shorten the service life of main shaft.
Invention content：
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of composite throttling formula static pressure air-bearing electricity masters
Axis, since radial throttle orifice and radial porous material are uniformly distributed circumferentially on axle sleeve, high pressure gas is sprayed from radial throttle orifice
Onto shaft core, when the air pressure for spraying into gas it is excessively high or it is too low decline so as to cause the high-speed rotating stability of shaft core when, pass through
The air pressure that the high pressure gas in shaft core is sprayed onto from radial porous material is adjusted, to improve the stability of shaft core when rotating at high speed.
In order to realize the purpose of the present invention, intend using following technical scheme：
The present invention includes：Shaft core, axial restraint set, right axle sleeve, orifice restriction air intake duct, main shaft, cooling water inlet channel, electricity
Machine stator, rotor, radial throttle orifice, radial porous material, left end cap fixing screws, left end cap, axial throttle orifice, axial direction
Porous material, porous material throttling air intake duct, left axle sleeve, cooling water outlet road, sealing ring, right end cap fixing screws, right end cap, end
Lid outgassing groove, external flange disk, flat key, fixing nut, gas off-take, axle sleeve fixing screws, it is characterised in that：The main shaft
It is interior to be equipped with orifice restriction air intake duct, porous material throttling air intake duct, cooling water inlet channel, cooling water outlet road and gas off-take, right axle sleeve
Orifice restriction air intake duct, porous material throttling air intake duct and gas off-take, left end cap are interior equipped with aperture section with being equipped in left axle sleeve
Flow inlet port and porous material throttling air intake duct, right end cap is interior to be equipped with end cap outgassing groove, and sealing ring is arranged in main shaft and right axle
On interface between set, left end cap and left axle sleeve, right axle sleeve, left axle sleeve are fixed on by axle sleeve fixing screws on main shaft,
Motor stator is mounted between right axle sleeve and left axle sleeve, and radial throttle orifice and radial porous material are equipped in right axle sleeve and left axle sleeve
Material, is equipped with axial throttle orifice and axial porous material in main shaft and left end cap, radial throttle orifice and axial direction throttle orifice with it is small
Hole throttling air intake duct connection, radial porous material and axial porous material are connected to porous material throttling air intake duct, and left end cap is logical
It crosses left end cap screw to be fixed on main shaft, shaft core left end protrusion is located in the space that main shaft is surrounded with left end cap, electricity
Machine rotor is mounted in shaft core, and axial restraint is set between rotor and right end cap, and right end cap passes through right end cap screw
It is fixed with main shaft and right axle sleeve, external flange disk is arranged by flat key in shaft core, and fixing nut fixes external flange disk
In shaft core, radial throttle orifice and radial porous material are evenly distributed on the circumference of above-mentioned right axle sleeve and left axle sleeve, it is radial
The number of throttle orifice is six eight either 12, and axial throttle orifice is evenly distributed on main shaft and left end cap
Number with axial porous material, axial throttle orifice is six eight either 12, above-mentioned radial porous material
Material is Porous Graphite bronze or ceramics with axial porous material.
The features of the present invention：
Since radial throttle orifice and radial porous material are evenly distributed on along same periphery on axle sleeve, high pressure gas is from diameter
It is sprayed onto in shaft core to throttle orifice, under the air pressure for spraying into gas is excessively high or the too low high-speed rotating stability so as to cause shaft core
When drop, the air pressure of the high pressure gas in shaft core is sprayed onto from radial porous material by adjusting, to improve shaft core when rotating at high speed
Stability.
Description of the drawings：
Fig. 1 illustrates structure of the invention figure.
Fig. 2 illustrates gas off-take figure of the present invention.
1, shaft core；2, axial restraint set；3, right axle sleeve；4, orifice restriction air intake duct；5, main shaft；6, cooling water inlet channel；
7, motor stator；8, rotor；9, radial throttle orifice；10, radial porous material；11, left end cap fixing screws；12, left end
Lid；13, axial throttle orifice；14, axial porous material；15, porous material throttling air intake duct；16, left axle sleeve；17, cooling water outlet
Road；18, sealing ring；19, right end cap fixing screws；20, right end cap；21, end cap outgassing groove；22, external flange disk；23, flat key；
24, fixing nut；25, gas off-take；26, axle sleeve fixing screws.
Specific implementation mode：
Illustrate the specific work process of the present invention below in conjunction with the accompanying drawings.
The present invention includes shaft core 1, axial restraint set 2, right axle sleeve 3, orifice restriction air intake duct 4, main shaft 5, cooling water inlet
Road 6, motor stator 7, rotor 8, radial throttle orifice 9, radial porous material 10, left end cap fixing screws 11, left end cap 12,
Axial throttle orifice 13, axial porous material 14, porous material throttling air intake duct 15, left axle sleeve 16, cooling water outlet road 17, sealing ring
18, right end cap fixing screws 19, right end cap 20, end cap outgassing groove 21, external flange disk 22, flat key 23, fixing nut 24, outlet
Road 25, axle sleeve fixing screws 26, be equipped in main shaft 5 orifice restriction air intake duct 4, porous material throttling air intake duct 15, it is cooling into
Orifice restriction air intake duct 4, porous material are equipped in water channel 6, cooling water outlet road 17 and gas off-take 25, right axle sleeve 3 and left axle sleeve 16
Material throttling air intake duct 15 and gas off-take 25, left end cap 12 is interior to be equipped with orifice restriction air intake duct 4 and porous material throttling air intake duct 15,
End cap outgassing groove 21 is equipped in right end cap 20, sealing ring 18 is arranged in main shaft 5 and right axle sleeve 3, left end cap 12 and left axle sleeve 16
Between interface on, right axle sleeve 3, left axle sleeve 16 are fixed on by axle sleeve fixing screws 26 on main shaft 5, motor stator 7 pacify
Between right axle sleeve 3 and left axle sleeve 16, radial throttle orifice 9 and radial porous material are equipped in right axle sleeve 3 and left axle sleeve 16
10, it is equipped with axial throttle orifice 13 and axial porous material 14 in main shaft 5 and left end cap 12, radial throttle orifice 9 and axial saves
Discharge orifice 13 is connected to orifice restriction air intake duct 4, and radial porous material 10 and axial porous material 14 and porous material throttle air inlet
Road 15 is connected to, and left end cap 12 is fixed on by left end cap screw 11 on main shaft 5, and 1 left end protrusion of shaft core is located at main shaft 5
In the space surrounded with left end cap 12, rotor 8 is mounted in shaft core 1, and 2 setting of axial restraint set is in rotor 8 and the right side
Between end cap 20, right end cap 20 is fixed by right end cap screw 19 and main shaft 5 and right axle sleeve 3, and external flange disk 22 passes through flat
Key 23 is arranged in shaft core 1, and external flange disk 22 is fixed in shaft core 1 by fixing nut 24, the circle of right axle sleeve 3 and left axle sleeve 16
Be evenly distributed with radial throttle orifice 9 and radial porous material 10 on week, the number of radial throttle orifice 9 be six either eight or
Person is 12, and axial throttle orifice 13 and axial porous material 14 are evenly distributed on main shaft 5 and left end cap 12, axial to throttle
The number in hole 13 is six eight either 12, and radial porous material 10 is Porous with axial porous material 14
Graphite bronze or ceramics.
Claims (3)
1. a kind of composite throttling formula static pressure air-bearing electro spindle, including shaft core (1), axial restraint set (2), right axle sleeve (3), aperture section
Flow inlet port (4), main shaft (5), cooling water inlet channel (6), motor stator (7), rotor (8), radial throttle orifice (9), diameter
To porous material (10), left end cap fixing screws (11), left end cap (12), axial throttle orifice (13), axial porous material (14),
Porous material throttling air intake duct (15), left axle sleeve (16), cooling water outlet road (17), sealing ring (18), right end cap fixing screws
(19), right end cap (20), end cap outgassing groove (21), external flange disk (22), flat key (23), fixing nut (24), gas off-take
(25), axle sleeve fixing screws (26), it is characterised in that：Orifice restriction air intake duct (4), porous is equipped in the main shaft (5)
Material restrictor air intake duct (15), cooling water inlet channel (6), cooling water outlet road (17) and gas off-take (25), right axle sleeve (3) and left axle sleeve
(16) orifice restriction air intake duct (4), porous material throttling air intake duct (15) and gas off-take (25) are equipped in, left end cap (12) is interior
Equipped with orifice restriction air intake duct (4) and porous material throttling air intake duct (15), it is equipped with end cap outgassing groove (21) in right end cap (20),
It is right on the interface that sealing ring (18) is arranged between main shaft (5) and right axle sleeve (3), left end cap (12) and left axle sleeve (16)
Axle sleeve (3), left axle sleeve (16) are fixed on by axle sleeve fixing screws (26) on main shaft (5), and motor stator (7) is mounted on right axle
It covers between (3) and left axle sleeve (16), radial throttle orifice (9) and radial porous material is equipped in right axle sleeve (3) and left axle sleeve (16)
Expect (10), axial throttle orifice (13) and axial porous material (14) are equipped in main shaft (5) and left end cap (12), it is radial to throttle
Hole (9) and axial throttle orifice (13) are connected to orifice restriction air intake duct (4), radial porous material (10) and axial porous material
(14) it is connected to porous material throttling air intake duct (15), left end cap (12) is fixed on main shaft (5) by left end cap screw (11)
On, shaft core (1) left end protrusion is located in the space that main shaft (5) is surrounded with left end cap (12), and rotor (8) is mounted on
In shaft core (1), axial restraint set (2) is arranged between rotor (8) and right end cap (20), and right end cap (20) passes through right end cap
Screw (19) and main shaft (5) and right axle sleeve (3) are fixed, and external flange disk (22) is arranged by flat key (23) in shaft core (1),
External flange disk (22) is fixed in shaft core (1) by fixing nut (24).
2. a kind of composite throttling formula static pressure air-bearing electro spindle according to claim 1, it is characterised in that：Right axle sleeve (3) and
Radial throttle orifice (9) and radial porous material (10), the number of radial throttle orifice (9) are evenly distributed on the circumference of left axle sleeve (16)
Mesh is six eight either 12, and axial throttle orifice is evenly distributed on main shaft (5) and left end cap (12)
(13) and axial porous material (14), the number of axial throttle orifice (13) is six eight or 12.
3. a kind of composite throttling formula static pressure air-bearing electro spindle according to claim 1, it is characterised in that：Radial porous material
(10) it is Porous Graphite bronze or ceramics with axial porous material (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820050346.6U CN207709894U (en) | 2018-01-02 | 2018-01-02 | A kind of composite throttling formula static pressure air-bearing electro spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820050346.6U CN207709894U (en) | 2018-01-02 | 2018-01-02 | A kind of composite throttling formula static pressure air-bearing electro spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207709894U true CN207709894U (en) | 2018-08-10 |
Family
ID=63051740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820050346.6U Withdrawn - After Issue CN207709894U (en) | 2018-01-02 | 2018-01-02 | A kind of composite throttling formula static pressure air-bearing electro spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207709894U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941623A (en) * | 2018-01-02 | 2018-12-07 | 中国计量大学 | A kind of composite throttling formula static pressure air-bearing electro spindle |
| CN109571062A (en) * | 2018-10-26 | 2019-04-05 | 广州市昊志机电股份有限公司 | A kind of aperture-porous restriction combination air-float main shaft |
| CN114178985A (en) * | 2021-11-30 | 2022-03-15 | 湖南大学 | Mixed air floating type high-speed ultra-precise air-drive zero-expansion main shaft |
-
2018
- 2018-01-02 CN CN201820050346.6U patent/CN207709894U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941623A (en) * | 2018-01-02 | 2018-12-07 | 中国计量大学 | A kind of composite throttling formula static pressure air-bearing electro spindle |
| CN108941623B (en) * | 2018-01-02 | 2024-04-16 | 中国计量大学 | Composite throttling type static pressure air floatation electric spindle |
| CN109571062A (en) * | 2018-10-26 | 2019-04-05 | 广州市昊志机电股份有限公司 | A kind of aperture-porous restriction combination air-float main shaft |
| CN114178985A (en) * | 2021-11-30 | 2022-03-15 | 湖南大学 | Mixed air floating type high-speed ultra-precise air-drive zero-expansion main shaft |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207709894U (en) | A kind of composite throttling formula static pressure air-bearing electro spindle | |
| CN103286678B (en) | A kind of Multifunction internal formula dynamic/static piezoelectric main shaft for efficient high-speed precision machine tool | |
| CN108941623A (en) | A kind of composite throttling formula static pressure air-bearing electro spindle | |
| CN105257700B (en) | A kind of hybrid tilting-pad radial gas bearing | |
| CN207873151U (en) | A kind of multiple throttle type static pressure air-bearing electro spindle | |
| CN102172877B (en) | Grinding device for high-precision ultrathin wafer | |
| GB1018300A (en) | Improvements in or relating to high speed gas driven turbines | |
| CN108188417B (en) | Multiple throttling type static pressure air floatation motorized spindle and application method thereof | |
| CN108194507A (en) | A kind of non-uniform Distribution variable orifice diameter is radial gas bearing provided | |
| CN109322917A (en) | A kind of radial and axial protection structure of magnetic suspension bearing | |
| CN203305052U (en) | Ultrahigh-speed air-bearing electric spindle | |
| CN103100729B (en) | High-speed electric main shaft device using sliding bearing and rolling bearing for composite support | |
| CN108608015A (en) | A kind of gas eddy wheel drive high speed water lubrication dynamic and static pressure bearing rotor system | |
| CN106424771A (en) | Micro spindle for fine machining | |
| CN110714985A (en) | Microminiature air bearing system with middle air supply | |
| CN107538347A (en) | A kind of precision horizontal surface grinding machine main shaft | |
| CN215672762U (en) | Air suspension blower with rear-mounted thrust bearing | |
| CN214534064U (en) | Small hole and slit composite throttling gas static pressure thrust bearing | |
| CN204504916U (en) | A kind of peripheral milling being convenient to assemble and safeguard | |
| CN209278336U (en) | A kind of radial and axial protection structure of magnetic suspension bearing | |
| CN207879856U (en) | A kind of non-uniform Distribution variable orifice diameter is radial gas bearing provided | |
| CN113404704A (en) | Air suspension blower with rear-mounted thrust bearing | |
| CN107387548B (en) | Archimedes spiral dynamic pressure sliding bearing and application | |
| CN104493209B (en) | Gas-liquid hybrid-support high-speed motorized spindle device with large thrust plate | |
| CN101402175B (en) | Independent oil supply structure for oil recess inside and outside primary shaft gathering ring bearing of high-speed machine tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180810 Effective date of abandoning: 20240416 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180810 Effective date of abandoning: 20240416 |