CN203711872U - Air floatation electric main shaft - Google Patents
Air floatation electric main shaft Download PDFInfo
- Publication number
- CN203711872U CN203711872U CN201320893885.3U CN201320893885U CN203711872U CN 203711872 U CN203711872 U CN 203711872U CN 201320893885 U CN201320893885 U CN 201320893885U CN 203711872 U CN203711872 U CN 203711872U
- Authority
- CN
- China
- Prior art keywords
- air
- axle
- bearing
- air floatation
- bearing assembly
- 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.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 239000008358 core component Substances 0.000 claims description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 229910052802 copper Inorganic materials 0.000 claims description 18
- 239000010949 copper Substances 0.000 claims description 18
- 239000011148 porous material Substances 0.000 claims description 12
- 238000005188 flotation Methods 0.000 claims description 11
- 238000013016 damping Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 230000000712 assembly Effects 0.000 abstract 13
- 238000000429 assembly Methods 0.000 abstract 13
- 241000227287 Elliottia pyroliflora Species 0.000 abstract 4
- 238000003754 machining Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses an air floatation electric main shaft which comprises a machine body, stators located in the machine body, shaft core assemblies located in the machine body and corresponding to the stators, upper air floatation bearing assemblies, lower air floatation bearing assemblies and a cutter clamping assembly arranged at the lower ends of the shaft core assemblies, wherein the upper air floatation bearing assemblies and the lower air floatation bearing assemblies are installed in the machine body. Each upper air floatation bearing assembly and each lower air floatation bearing assembly respectively comprise a bearing block, a copper bush fixed in the bearing block and an inner steel bushing fixed in the copper bush; the shaft core assemblies are inserted into the inner steel bushings of the upper air floatation bearing assemblies and the inner steel bushings of the lower air floatation bearing assemblies. The inner steel bushings are fixed in the copper bushes, so that occurrence of the phenomenon that gaps between the upper air floatation bearing assemblies and the shaft core assemblies and between the lower air floatation bearing assemblies and the shaft core assemblies become large can be reduced by means of restriction of the inner steel bushings in the operation process of the electric main shaft, and the probability of locking of the electric main shaft can be effectively reduced; in addition, by the adoption of the design that the bearing blocks, the copper bushes and the inner steel bushings are combined, machining and assembling are facilitated.
Description
Technical field
The utility model relates to a kind of air-flotation electric spindle.
Background technology
In existing electric main shaft, generally comprise axle core component, upper air-bearing assembly, lower air-bearing assembly.Described upper air-bearing assembly and lower air-bearing assembly include bearing block, are fixed on the copper sheathing in bearing block, and axle core component is inserted in the copper sheathing of air-bearing assembly and the copper sheathing of lower air-bearing assembly.And in the course of work of electric main shaft, axle core component heating, copper sheathing is heated and expands outwardly, easily occurs that upper air-bearing assembly, lower air-bearing assembly and axle core component gap become large phenomenon, thereby causes electric main shaft locking.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of air-flotation electric spindle, it,, by the restriction of steel bushing in utilizing, can reduce upper air-bearing assembly, lower air-bearing assembly and axle core component gap and become large phenomenon, can effectively reduce the probability of electric main shaft locking.
For addressing the above problem, the technical scheme that the utility model adopts is as follows:
Air-flotation electric spindle, comprise body, be positioned at body stator, be positioned at body the axle core component corresponding with stator, the upper air-bearing assembly that is arranged on body and lower air-bearing assembly, be located at the folder knife assembly of axle core component lower end; Described upper air-bearing assembly and lower air-bearing assembly include bearing block, be fixed on copper sheathing in bearing block, be fixed on the interior steel bushing in copper sheathing; Described axle core component interts in the interior steel bushing of upper air-bearing assembly and the interior steel bushing of lower air-bearing assembly.
On described body, be provided with cooling duct and gas channels, on described bearing block, be horizontally arranged with passage, on copper sheathing, be horizontally arranged with the installing hole that is through to interior steel bushing madial wall, in described installing hole, damping plug be installed, the venthole of damping plug is communicated with gas channels by passage; The maximum diameter of hole of venthole is less than the aperture of passage.
Described venthole comprises export department, transitional pore portion; Described export department is communicated with passage by transitional pore portion; The aperture of described transitional pore portion is less than the aperture of passage, and the maximum diameter of hole of described export department is less than the aperture of transitional pore portion.
Described axle core component comprises axle sleeve, is inserted into the axle despot in axle sleeve; Described folder knife assembly is arranged on axle despot's lower end; The lower end of axle sleeve is provided with bottom pocket, between axle despot's lower end and bottom pocket, dish spring is installed; In body, be provided with for downward pushing tow axle despot with the cylinder assembly from releasing down in body by folder knife assembly.
Described axle despot and axle sleeve interference fit.
The lower end of described body is provided with thrust bearing, and intert in thrust bearing the lower end of described axle core component.
Compared to existing technology, the beneficial effects of the utility model are:
The utility model by being fixed with interior steel bushing in copper sheathing, in the electric main shaft course of work, by utilizing the restriction of interior steel bushing, can reduce upper air-bearing assembly, lower air-bearing assembly and axle core component gap and become large phenomenon, can effectively reduce the probability of electric main shaft locking; And, by adopting the combined type of bearing block, copper sheathing, interior steel bushing to design, be also convenient to processing, assembling; The utility model is by adopting interference fit by axle despot with axle sleeve, can make cutter there will not be shaking phenomenon man-hour adding.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the lower air-bearing assembly of Fig. 1;
Fig. 3 is the structural representation of the axle core component of Fig. 1.
The specific embodiment
Below, by reference to the accompanying drawings and the specific embodiment, the utility model is described further, so that clearer, understand the utility model technical thought required for protection.
As shown in Figure 1, 2, 3, for a kind of air-flotation electric spindle of the utility model, comprise body 7, be positioned at body 7 stator 6, be positioned at body 7 axle core component 5 corresponding with stator 6, the upper air-bearing assembly 4 that is arranged on body 7 and lower air-bearing assembly 8, be located at the folder knife assembly 11 of axle core component 5 lower ends; Described upper air-bearing assembly 4 and lower air-bearing assembly 8 include bearing block 81, be fixed on copper sheathing 82 in bearing block 81, be fixed on the interior steel bushing 83 in copper sheathing 82; Described axle core component 5 interts in the interior steel bushing of upper air-bearing assembly 4 and the interior steel bushing 83 of lower air-bearing assembly 8.On described body 7, be provided with cooling duct and gas channels, on described bearing block 81, be horizontally arranged with passage, on copper sheathing 82, be horizontally arranged with the installing hole that is through to interior steel bushing 83 madial walls, in described installing hole, damping plug be installed, the venthole of damping plug is communicated with gas channels by passage; The maximum diameter of hole of venthole is less than the aperture of passage.
Wherein, described venthole can be set to the various shapes such as cylindric, as long as the maximum diameter of hole of venthole is less than the aperture of passage.Preferably, described venthole comprises export department, transitional pore portion; Described export department is communicated with passage by transitional pore portion; The aperture of described transitional pore portion is less than the aperture of passage, and the maximum diameter of hole of described export department is less than the aperture of transitional pore portion.By adopting said structure, be conducive to improve the throttling action of upper air-bearing assembly 4 and lower air-bearing assembly 8.
Preferably, described axle core component 5 comprises axle sleeve 12, is inserted into the axle despot 13 in axle sleeve 12; Described folder knife assembly 11 is arranged on axle despot 13 lower end; The lower end of axle sleeve 12 is provided with bottom pocket 9, between axle despot 13 lower end and bottom pocket 9, dish spring 14 is installed; In body 7, be provided with for downward pushing tow axle despot 13 with the cylinder assembly 1 from releasing down in body 7 by folder knife assembly 11.Concrete, described axle despot 13 and axle sleeve 12 interference fit.
The lower end of described body 7 is provided with thrust bearing 10, and intert in thrust bearing 10 lower end of described axle core component 5.
In use, pressure air is applied on axle core component 5 after by upper air-bearing assembly 4, lower air-bearing assembly 8, thrust bearing 10 and makes axle core component 5 in suspended state, in the time of can making axle core component 5 rotation, without any contact friction, friction loss and heating have been reduced most possibly.And in use, can also in cooling duct, pass into cooling water, electric main shaft is carried out to circulating cooling, while working with leakage of electricity main shaft and the heat that produces of windage, guarantee that electric main shaft is stable, work reliably.And need to change cutter time, in cylinder assembly 1, pass into compressed air, axle in the piston rod impeller-hub core assembly 5 of cylinder assembly 1 despot 13 and compact disc spring 14, make to press from both sides knife assembly 11 and move down and be convenient to unload bottom tool and pack new cutter into, and can make to press from both sides knife assembly 11 by shifter cylinder, move under the elastic force effect of dish spring 14.
The utility model by being fixed with interior steel bushing 83 in copper sheathing 82, in the electric main shaft course of work, electricity spindle heat generation, because steel bushing 83 at same temperature is less than copper sheathing 82 expansions, by utilizing the restriction of interior steel bushing 83, can reduce upper air-bearing assembly 4, lower air-bearing assembly 8 and axle core component 5 gaps and become large phenomenon, can effectively reduce the probability of axle core component 5 lockings; And, by adopting the combined type of bearing block 81, copper sheathing 82, interior steel bushing 83 to design, be also convenient to processing, assembling; The utility model is by adopting interference fit by axle despot 13 with axle sleeve 12, can make cutter there will not be shaking phenomenon man-hour adding; By axle core component 5, stator 6 are rationally set, also can make electric main shaft there is large bearing capacity, high rigidity, high-power.
Above-mentioned embodiment is only preferred embodiment of the present utility model; can not limit with this scope of the utility model protection, the variation of any unsubstantiality that those skilled in the art does on basis of the present utility model and replacement all belong to the utility model scope required for protection.
Claims (6)
1. air-flotation electric spindle, is characterized in that: comprise body, be positioned at body stator, be positioned at body the axle core component corresponding with stator, the upper air-bearing assembly that is arranged on body and lower air-bearing assembly, be located at the folder knife assembly of axle core component lower end; Described upper air-bearing assembly and lower air-bearing assembly include bearing block, be fixed on copper sheathing in bearing block, be fixed on the interior steel bushing in copper sheathing; Described axle core component interts in the interior steel bushing of upper air-bearing assembly and the interior steel bushing of lower air-bearing assembly.
2. air-flotation electric spindle as claimed in claim 1, it is characterized in that: on described body, be provided with cooling duct and gas channels, on described bearing block, be horizontally arranged with passage, on copper sheathing, be horizontally arranged with the installing hole that is through to interior steel bushing madial wall, in described installing hole, damping plug is installed, the venthole of damping plug is communicated with gas channels by passage; The maximum diameter of hole of venthole is less than the aperture of passage.
3. air-flotation electric spindle as claimed in claim 2, is characterized in that: described venthole comprises export department, transitional pore portion; Described export department is communicated with passage by transitional pore portion; The aperture of described transitional pore portion is less than the aperture of passage, and the maximum diameter of hole of described export department is less than the aperture of transitional pore portion.
4. air-flotation electric spindle as claimed in claim 1, is characterized in that: described axle core component comprises axle sleeve, is inserted into the axle despot in axle sleeve; Described folder knife assembly is arranged on axle despot's lower end; The lower end of axle sleeve is provided with bottom pocket, between axle despot's lower end and bottom pocket, dish spring is installed; In body, be provided with for downward pushing tow axle despot with the cylinder assembly from releasing down in body by folder knife assembly.
5. air-flotation electric spindle as claimed in claim 4, is characterized in that: described axle despot and axle sleeve interference fit.
6. air-flotation electric spindle as claimed in claim 1, is characterized in that: the lower end of described body is provided with thrust bearing, and intert in thrust bearing the lower end of described axle core component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893885.3U CN203711872U (en) | 2013-12-31 | 2013-12-31 | Air floatation electric main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893885.3U CN203711872U (en) | 2013-12-31 | 2013-12-31 | Air floatation electric main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203711872U true CN203711872U (en) | 2014-07-16 |
Family
ID=51151071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320893885.3U Expired - Lifetime CN203711872U (en) | 2013-12-31 | 2013-12-31 | Air floatation electric main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203711872U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458915A (en) * | 2015-11-12 | 2016-04-06 | 广州市昊志机电股份有限公司 | High-speed air electric spindle for glass grinding |
| CN108817421A (en) * | 2018-07-30 | 2018-11-16 | 东莞市显隆电机有限公司 | A kind of high-speed air floatation formula electro spindle of high-precision low energy consumption |
-
2013
- 2013-12-31 CN CN201320893885.3U patent/CN203711872U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458915A (en) * | 2015-11-12 | 2016-04-06 | 广州市昊志机电股份有限公司 | High-speed air electric spindle for glass grinding |
| CN105458915B (en) * | 2015-11-12 | 2018-08-17 | 广州市昊志机电股份有限公司 | A kind of high-speed air floatation glass grinding electro spindle |
| CN108817421A (en) * | 2018-07-30 | 2018-11-16 | 东莞市显隆电机有限公司 | A kind of high-speed air floatation formula electro spindle of high-precision low energy consumption |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
|
| CX01 | Expiry of patent term |