CN102392853A - Suspend-structured aero static main axle bearing - Google Patents
Suspend-structured aero static main axle bearing Download PDFInfo
- Publication number
- CN102392853A CN102392853A CN2011103690842A CN201110369084A CN102392853A CN 102392853 A CN102392853 A CN 102392853A CN 2011103690842 A CN2011103690842 A CN 2011103690842A CN 201110369084 A CN201110369084 A CN 201110369084A CN 102392853 A CN102392853 A CN 102392853A
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- China
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- inner core
- bearing
- main axle
- main shaft
- outer sleeve
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Abstract
The invention discloses a suspend-structured aero static main axle bearing, characterized in that: a housing is arranged on a flange, the housing is provided with an inner core, the inner core is connected with the housing through an inner core outer sleeve, the portions close to the ends of the inner core outer sleeve are provided with rubber sealing rings for vibration suppression; the portions close to the ends of the inner core outer sleeve are provided with grooves, and the rubber sealing rings are arranged in the grooves; the depth H of the groove is two-thirds of the diameter of the rubber sealing ring; the inner core and the inner core outer sleeve are provided mutually corresponding pores; and the inner core outer sleeve and the inner core are both provided with sealing rings. According to the invention, the aero static main axle bearing adopts a split-type structure to allow the bearing inner core to suspend in the bearing, by the effects of vibration suppression of the rubber sealing rings, the vibration is prevented from spreading, and the main axle is allowed to be stable.
Description
Technical field
The present invention relates to a kind of air spindle bearing, especially relate to a kind of floated structural gap main shaft bearing.
Background technique
Pneumatic bearing is called air-bearing again, refers to the sliding bearing of gas (normally air, but also might be other gas) as oiling agent; Air ratio oil viscosity is little; High temperature resistant, pollution-free, thereby can be used in high speed machines, instrument and the radioactivity device.Common air spindle bearing is the rigid structure of fixing, and each several part is to connect fixing one each other; This structure makes it at work vibrations have been directly passed to the main shaft shell, thus the stationarity of influence and destruction main shaft.
Summary of the invention
Technical problem to be solved by this invention provides a kind of floated structural gap main shaft bearing that can keep the main shaft stationarity.
In order to solve the problems of the technologies described above, the present invention realizes through following technological scheme:
This floated structural gap main shaft bearing comprises the shell that is arranged on the flange, is provided with inner core in the said shell, is connected through the inner core overcoat between inner core and the shell, and said inner core overcoat is provided with by two-end part and is used for the rubber seal of damping.
In order to squint the position that prevents rubber seal, further, said inner core overcoat leans on the position at two ends to be provided with groove, and rubber seal is installed in the groove.
For inner core is suspended in the main shaft bearing, reduce vibrations, further, said depth of groove H is 2/3 of a rubber seal loop diameter.
In order to guarantee that the air in the main shaft gets into, more further, said inner core and inner core overcoat are provided with the pore of mutual correspondence.
In order to prevent gas leakage and to leak, further, be equipped with seal ring on said inner core overcoat and the inner core.
Compared with prior art, usefulness of the present invention is: this air spindle bearing adopts split-type structural, and bearing inner-core is suspended in the bearing, and through the cushioning effect of rubber seal, limited vibrations and outwards propagated, be that main shaft is more steady.
Description of drawings:
Below in conjunction with accompanying drawing the present invention is further specified.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the partial enlarged drawing of A among Fig. 1.
Among the figure: 1, flange; 2, shell; 3, pore; 4, inner core; 5, rubber seal;
6, inner core overcoat; 7, seal ring; 8, groove.
Embodiment:
Describe the present invention below in conjunction with accompanying drawing and embodiment:
A kind of floated structural gap main shaft bearing shown in Figure 1 comprises flange 1, and said flange 1 is provided with shell 2, and flange 1 is a concentric structure with shell 2; Be provided with center hole in the said shell 1, inner core 4 is installed in the hole, said inner core 4 is connected with shell 2 through inner core overcoat 6; Be provided with seal ring 7 on said inner core overcoat 6 and the inner core 4, the seal ring 7 on the inner core overcoat 6 mainly is used for preventing to leak, and the seal ring 7 on the inner core 4 mainly is used for preventing inner core 4 gas leakage; As shown in Figure 2; Said inner core overcoat 6 leans on the position at two ends to be provided with groove 8, be provided with rubber seal 5 in the groove 8, and the degree of depth of groove 8 is 2/3 of rubber seal 5 diameters; Like this; Inner core overcoat 6 is connected with shell 2 through rubber seal 5, and the inner core 4 that is arranged in the inner core overcoat 6 is suspended in the shell 2, when vibrations, can limit vibrations and outwards propagate; Said inner core 4 and inner core overcoat 6 are provided with the pore 3 of mutual correspondence, and air compression is got into.
Pressurized air gets into through pore 3 during work, through nozzle rotor is floated, and reaches the pneumatic bearing role; Because floated structural gap main shaft bearing adopts split-type structural, inner core 4 is suspended in the shell 2, and is connected with shell 2 through the rubber seal 5 that is arranged on the inner core 4 outside inner core overcoats 6; When vibrations produce; Through the cushioning effect of rubber seal 5, limited vibrations and outwards propagated, make the air spindle smooth running.
It is emphasized that: above only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction; Every foundation technical spirit of the present invention all still belongs in the scope of technological scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1. floated structural gap main shaft bearing; It is characterized in that: comprise the shell (2) that is arranged on the flange (1); Be provided with inner core (5) in the said shell (2); Be connected through inner core overcoat (6) between inner core (5) and the shell (2), said inner core overcoat (6) is provided with by two-end part and is used for the rubber seal (5) of damping.
2. floated structural gap main shaft bearing according to claim 1 is characterized in that: said inner core overcoat (6) leans on the position at two ends to be provided with groove (8), and rubber seal (5) is installed in the groove (8).
3. floated structural gap main shaft bearing according to claim 2 is characterized in that: said groove (8) depth H is 2/3 of rubber seal (a 5) diameter.
4. floated structural gap main shaft bearing according to claim 1 is characterized in that: said inner core (5) and inner core overcoat (6) are provided with the pore (3) of mutual correspondence.
5. floated structural gap main shaft bearing according to claim 1 is characterized in that: be equipped with seal ring (7) on said inner core overcoat (6) and the inner core (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103690842A CN102392853A (en) | 2011-11-21 | 2011-11-21 | Suspend-structured aero static main axle bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103690842A CN102392853A (en) | 2011-11-21 | 2011-11-21 | Suspend-structured aero static main axle bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102392853A true CN102392853A (en) | 2012-03-28 |
Family
ID=45860217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103690842A Pending CN102392853A (en) | 2011-11-21 | 2011-11-21 | Suspend-structured aero static main axle bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102392853A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506071A (en) * | 2011-11-21 | 2012-06-20 | 苏州吉矽精密科技有限公司 | Air main shaft bearing with detachable structure |
| CN103899657A (en) * | 2014-04-23 | 2014-07-02 | 曾琪岚 | Shock absorption gas pressure bearing |
| CN105673692A (en) * | 2016-04-13 | 2016-06-15 | 中国船舶重工集团公司第七0四研究所 | Static air bearing nozzle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1207315A1 (en) * | 2000-11-15 | 2002-05-22 | Westwind Air Bearings Limited | Air bearing |
| US20020122608A1 (en) * | 1999-09-02 | 2002-09-05 | Yoshio Fujikawa | Externally pressurized gas bearing spindle assembly |
| CN200993163Y (en) * | 2006-12-18 | 2007-12-19 | 广州市大族高精电机有限公司 | Lower air baring for air-floating electric spindle |
| JP2009197943A (en) * | 2008-02-22 | 2009-09-03 | Ntn Corp | Gas bearing spindle |
| CN101978180A (en) * | 2009-01-19 | 2011-02-16 | Gsi集团有限公司 | Gas bearing spindles and gas bearing assemblies for gas bearing spindles |
-
2011
- 2011-11-21 CN CN2011103690842A patent/CN102392853A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020122608A1 (en) * | 1999-09-02 | 2002-09-05 | Yoshio Fujikawa | Externally pressurized gas bearing spindle assembly |
| EP1207315A1 (en) * | 2000-11-15 | 2002-05-22 | Westwind Air Bearings Limited | Air bearing |
| CN200993163Y (en) * | 2006-12-18 | 2007-12-19 | 广州市大族高精电机有限公司 | Lower air baring for air-floating electric spindle |
| JP2009197943A (en) * | 2008-02-22 | 2009-09-03 | Ntn Corp | Gas bearing spindle |
| CN101978180A (en) * | 2009-01-19 | 2011-02-16 | Gsi集团有限公司 | Gas bearing spindles and gas bearing assemblies for gas bearing spindles |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506071A (en) * | 2011-11-21 | 2012-06-20 | 苏州吉矽精密科技有限公司 | Air main shaft bearing with detachable structure |
| CN103899657A (en) * | 2014-04-23 | 2014-07-02 | 曾琪岚 | Shock absorption gas pressure bearing |
| CN103899657B (en) * | 2014-04-23 | 2016-08-24 | 曾琪岚 | Damping gas thrust bearing |
| CN105673692A (en) * | 2016-04-13 | 2016-06-15 | 中国船舶重工集团公司第七0四研究所 | Static air bearing nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120328 |