CN202571309U - Main shaft structure - Google Patents
Main shaft structure Download PDFInfo
- Publication number
- CN202571309U CN202571309U CN 201220193076 CN201220193076U CN202571309U CN 202571309 U CN202571309 U CN 202571309U CN 201220193076 CN201220193076 CN 201220193076 CN 201220193076 U CN201220193076 U CN 201220193076U CN 202571309 U CN202571309 U CN 202571309U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- angular contact
- contact bearing
- utility
- pair
- 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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- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a main shaft structure which comprises first angular contact bearings (1), a main shaft (2), and second angular contact bearings (3). One side of the main shaft (2) is provided with a pair of the first angular contact bearings (1). The other side of the main shaft (2) is provided with a pair of the second angular contact bearings (3). The main shaft structure is compact in structure, low in cost and high in production efficiency, and easily ensures installation accuracy of the main shaft.
Description
Technical field
The utility model belongs to the machine tool technology field, particularly relates to a kind of main axle structure.
Background technology
Old main axle structure fore bearing adopts NN3015 inner cone double-row roller bearing, and main shaft need grind outer cone and it is singly joined, and sealing ring is installed in the fore bearing front; Rear bearing adopts the angular contact bearing of pairing, and the rear bearing front adds the rear axle rim.The spindle taper size of this kind configuration mode need singly be joined, and a lot of size chains (sealing ring length direction and interior hole dimension) need to calculate, and the quantity that auxiliary component need be processed is also more.
The utility model content
The utility model technical problem to be solved provides a kind of main axle structure, can shorten installation time, guarantees assembly precision.
The utility model solves the technical scheme that its technical problem adopted: a kind of main axle structure is provided; Comprise first angular contact bearing, main shaft, second angular contact bearing; Described main shaft one side is equipped with a pair of first angular contact bearing, and the main shaft opposite side is installed a pair of second angular contact bearing.
The described alignment of shafts has a through hole.
Described main shaft one side end face has screwed hole.
Beneficial effect
The utility model more compact structure, cost is lower, and production efficiency is higher, more is prone to guarantee the main shaft installation accuracy.
Description of drawings
Fig. 1 is the utility model cutaway view.
Fig. 2 is the original device cutaway view.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Like Fig. 1～shown in Figure 2, a kind of main axle structure comprises first angular contact bearing 1, main shaft 2, the second angular contact bearings 3, and described main shaft 2 one sides are equipped with a pair of first angular contact bearing 1, and main shaft 2 opposite sides are installed a pair of second angular contact bearing 3.
Described main shaft 2 centers have a through hole.
Described main shaft 2 one side end faces have screwed hole.
It is littler that new construction changes friction at following NN3015 inner cone double-row roller bearing of the prerequisite that does not limit the main shaft rigidity, and the angular contact bearing that precision is higher has saved the external taper of spindle match grinding process, saved installation sealing ring retaining and rear axle rim part simultaneously.Make main shaft processing become convenient through improvement, more be prone to guarantee precision; Reduced unnecessary part and Related Dimension Chain and made main axle structure compacter, cost is lower, and production efficiency is higher, more is prone to guarantee the main shaft installation accuracy.
Claims (3)
1. a main axle structure comprises first angular contact bearing (1), main shaft (2), and second angular contact bearing (3) is characterized in that: described main shaft (2) one sides are equipped with a pair of first angular contact bearing (1), and main shaft (2) opposite side is installed a pair of second angular contact bearing (3).
2. a kind of main axle structure according to claim 1 is characterized in that: described main shaft (2) center has a through hole.
3. a kind of main axle structure according to claim 1 is characterized in that: described main shaft (2) one side end faces have screwed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220193076 CN202571309U (en) | 2012-04-28 | 2012-04-28 | Main shaft structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220193076 CN202571309U (en) | 2012-04-28 | 2012-04-28 | Main shaft structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202571309U true CN202571309U (en) | 2012-12-05 |
Family
ID=47240761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220193076 Expired - Fee Related CN202571309U (en) | 2012-04-28 | 2012-04-28 | Main shaft structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202571309U (en) |
-
2012
- 2012-04-28 CN CN 201220193076 patent/CN202571309U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20140428 |