CN204381424U - A kind of axle core - Google Patents
A kind of axle core Download PDFInfo
- Publication number
- CN204381424U CN204381424U CN201420865965.2U CN201420865965U CN204381424U CN 204381424 U CN204381424 U CN 204381424U CN 201420865965 U CN201420865965 U CN 201420865965U CN 204381424 U CN204381424 U CN 204381424U
- Authority
- CN
- China
- Prior art keywords
- section
- axle core
- flying
- rotating shaft
- flying disc
- 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 - Fee Related
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Abstract
A kind of axle core, this axle core comprises rotating shaft section, is fixedly connected on the chuck section of rotating shaft section one end, the flying disc being provided with two equal diameters at interval in chuck section, the sliding sleeve section part be positioned between two flying discs forms a construction section, the outline of the axial cross section of this construction section any direction all with the centerline axis parallel of axle core, two flying discs, two faces adjacent to each other form the compression face that is operationally subject to the high pressure gas pushing tow that two-sided air supporting thrust bearing both sides export respectively.The utility model arranges two flying discs on axle core, two flying discs have relative and that lifting surface area is equal face, therefore, the section diameter of axle core between two flying discs without the need to flying disc outside diameter be consistent and can meet the requirement of axle mandrel to different directions stress equalization, the requirement on machining accuracy of axle core can be reduced, have the axial carrying capacity that effectively can increase axle core simultaneously.
Description
Technical field
The utility model relates to a kind of axle core.
Background technology
Existing electro spindle axle core arranges flying disc usually, the thrust bearing on electro spindle body is utilized to form bearing supporting to axle core, existing axle cored structure is all arrange a flying disc, body arranges two thrust bearings, respectively axial support force is formed to the two sides of flying disc, start under same pressure, as long as flying disc two sides area is unequal, flying disc both sides are stressed just uneven, the side force that area is large is large, the side force that area is little is little, when two sides have big difference, capable large side can be made to be promoted to the side that power is little by axle core, power little side air pressure increases thereupon, the corresponding reduction in the large side of power, finally reach stress balance, if flying disc both sides area has big difference, then can the danger of the little one side of forces occurring and thrust bearing contacts or collision.Axle core safe operation time equal in order to ensure both sides axial support power, therefore, ensure that axle core is in the equal diameters of flying disc two side portions or close to equal, then the diameter of flying disc chuck section also must with the equal diameters of flying disc rotating shaft section or close to equal, this machining accuracy for axle core proposes higher requirement, and, diameter due to axle core needs adaptive electro spindle body usually, stator, the parts such as bearing block, therefore, when axle core diameter is fixing, the diameter of flying disc chuck section not only wants the diameter of adaptive shaft core, also to be applicable to installing simultaneously, the area of such flying disc also can be restricted, this just serious lifting surface area that have impact on flying disc, define the axial carrying capacity of axle core to a certain extent.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of axle core component, and it effectively can improve the axial carrying capacity of axle core, reduces the requirement to axle core machining accuracy simultaneously.
For achieving the above object, the utility model adopts following technical scheme:
This axle core of a kind of axle core comprises rotating shaft section, is fixedly connected on the chuck section of rotating shaft section one end, the flying disc being provided with two equal diameters at interval in chuck section, the chuck section part be positioned between two flying discs forms a construction section, the outline of the axial cross section of this construction section any direction all with the centerline axis parallel of axle core, two flying discs, two faces adjacent to each other form the compression face that is operationally subject to the high pressure gas pushing tow that two-sided air supporting thrust bearing both sides export respectively.
The other end of rotating shaft section is also provided with a linkage section, and one end of this linkage section is fixedly plugged in rotating shaft section in an interference fit, and the socket of linkage section outside is fixed with a rotor.
The beneficial effects of the utility model are:
Compared to prior art, the utility model arranges two flying discs on axle core, two flying discs have relative and that lifting surface area is equal face, therefore, the section diameter of axle core between two flying discs without the need to flying disc outside diameter be consistent and can meet the requirement of axle mandrel to different directions stress equalization, the requirement on machining accuracy of axle core can be reduced, effectively can increase again the axial carrying capacity of axle core simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the zoomed-in view at C place in Fig. 1;
Wherein: 10, rotating shaft section; 20, chuck section; 21, flying disc; 22, flying disc; 30, linkage section; 31, rotor.
Detailed description of the invention
Below, by reference to the accompanying drawings and detailed description of the invention, the utility model is described further:
As Fig. 1, shown in 2, for a kind of axle core of the present utility model, this axle core comprises rotating shaft section 10 and is fixed on the chuck section 20 of rotating shaft section 10 near cutter one end, chuck section 20 is provided with flying disc 21 and flying disc 22, flying disc 21 and flying disc 22 interval are arranged, and the equal diameters both it, the part of chuck section 20 between flying disc 21 and flying disc 22 forms a construction section, this construction section is cylindrical tube shape structure, that is to say, the outline of construction section any direction axial cross section all with the centerline axis parallel of axle core, also can be understood as, the diameter of any radial section of construction section is all equal, air-floating main shaft is provided with a two-sided thrust air-bearing, this two-sided thrust air-bearing is between flying disc 21 and flying disc 22, this two-sided thrust air-bearing is respectively used to apply axial support power to flying disc 21 and flying disc 22 face adjacent to each other, that is, flying disc 21 and flying disc 22 two faces adjacent to each other form a compression face respectively, the high pressure gas that two-sided thrust air-bearing both sides export applies axial support power to the A face of flying disc 21 and the B face of flying disc 22 respectively.
Axle core of the present utility model is owing to arranging two above-mentioned flying discs 21 and flying disc 22, and the distance of flying disc 21 and flying disc 22 Edge Distance construction section is d, that is, the lifting surface area of flying disc 21 and flying disc 22 is equal, guarantee that the axially loaded of axle core is impartial, simultaneously, stress surface due to two thrust bearings is respectively the A face on flying disc 21 and the B face on flying disc 22, A face and B face are symmetrical arranged, therefore, the diameter of the construction section installed for adaptive thrust bearing is without the need to consistent with the diameter outside flying disc 21 and flying disc 22, reduce the machining accuracy of axle core, and, can by reducing the diameter of construction section, increase flying disc 21 and the distance d between flying disc 22 outward flange and construction section surface, in order to the area in the B face in the A face and flying disc 22 that increase flying disc 21, thus increase lifting surface area, then the axial carrying capacity of axle core is increased.
The other end of rotating shaft section 10 is also provided with a linkage section 30, and one end of this linkage section 30 is fixedly plugged in rotating shaft section 10 in an interference fit, and the socket of linkage section 30 outside is fixed with a rotor 31.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the utility model claim.
Claims (2)
1. an axle core, it is characterized in that, this axle core comprises rotating shaft section, is fixedly connected on the chuck section of rotating shaft section one end, the flying disc being provided with two equal diameters at interval in chuck section, the sliding sleeve section part be positioned between two flying discs forms a construction section, the outline of the axial cross section of this construction section any direction all with the centerline axis parallel of axle core, two flying discs, two faces adjacent to each other form the compression face that is operationally subject to the high pressure gas pushing tow that two-sided air supporting thrust bearing both sides export respectively.
2. axle core as claimed in claim 1, it is characterized in that, the other end of rotating shaft section is also provided with a linkage section, and one end of this linkage section is fixedly plugged in rotating shaft section in an interference fit, and the socket of linkage section outside is fixed with a rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865965.2U CN204381424U (en) | 2014-12-26 | 2014-12-26 | A kind of axle core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420865965.2U CN204381424U (en) | 2014-12-26 | 2014-12-26 | A kind of axle core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204381424U true CN204381424U (en) | 2015-06-10 |
Family
ID=53354179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420865965.2U Expired - Fee Related CN204381424U (en) | 2014-12-26 | 2014-12-26 | A kind of axle core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204381424U (en) |
-
2014
- 2014-12-26 CN CN201420865965.2U patent/CN204381424U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20191226 |