CN203770399U - Angular contact bearing outer ring structure of electric spindle - Google Patents
Angular contact bearing outer ring structure of electric spindle Download PDFInfo
- Publication number
- CN203770399U CN203770399U CN201420007282.3U CN201420007282U CN203770399U CN 203770399 U CN203770399 U CN 203770399U CN 201420007282 U CN201420007282 U CN 201420007282U CN 203770399 U CN203770399 U CN 203770399U
- Authority
- CN
- China
- Prior art keywords
- outer ring
- angular contact
- contact bearing
- bearing
- seal groove
- 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
Links
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to an angular contact bearing outer ring structure of an electric spindle. The structure comprises an outer ring, wherein a first seal groove, an outer cage riding land, a ball inserting counterbored surface and a second seal groove are formed in the circumferential surface of an inner hole of the outer ring from a first end to a second end in sequence. The structure is characterized in that the second end of the outer ring is widened when extending along the axis direction; an oil storage groove is formed in the outer cylindrical surface of the outer ring; a heat radiating groove is formed in the circumferential surface of an inner hole of the widened extending part of the outer ring. The structure has the advantages that the structure is simple and is ingenious in design; through widening design of the outer ring of an angular contact bearing, the bearing can further keep parallel with the axis when generating axial play, thus improving the stability of the bearing.
Description
Technical field
The utility model relates to a kind of bearing outer ring structural design, specifically a kind of angular contact bearing outer ring structure for electric main shaft.
Background technique
Electricity main shaft is that Modern High-Speed is cut emerging product, and it has highi degree of accuracy, high-revolving feature.It is all generally to adopt angular contact bearing to arrange according to " the first two rear one " mode that the supporting of electricity main shaft is installed, and electric front-end of spindle is by the angular contact bearing supporting of two cover DT pairings, and electric rear-end of spindle adopts a set of angular contact bearing to support, and then uses spring pre-tightening.At present this structure is used extensively, but have a common problem be exactly 80% electric mainshaft bearing be all that the angular contact bearing of rear end lost efficacy in advance, no matter be with import or with domestic bearing be all such situation.Claimant conducts in-depth research this, it is the effect due to pneumatic thrust in the time of tool changing of electric main shaft that discovery causes the angular contact bearing of rear end to produce the basic reason losing efficacy, cause producing and moving about between bearing outer ring and bearing support, after each unloading, be to produce thrust by spring reset, make bearing outer ring be returned to original position.Easily make bearing produce, in the time running up, the inner local pressure of raceway groove, causes angular contact bearing early failue.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of angular contact bearing outer ring structure for electric main shaft is provided, and it is simple in structure, designs ingeniously, carries out Widening Design by the outer ring of diametrical connection contact bearing, has improved antiwhip.
The technological scheme providing according to the utility model: for the angular contact bearing outer ring structure of electric main shaft, comprise outer ring, on the endoporus circumferential surface of described outer ring, be followed successively by the first seal groove, outer guiding retainer guide surface, dress ball fore shaft face and the second seal groove by first end to the second end, it is characterized in that: described outer ring the second end extends and widens along its axial direction, on the external cylindrical surface of outer ring, be provided with oil storage tank, on the endoporus circumferential surface of outer ring extension widened section, be provided with radiating groove.
As further improvement of the utility model, described oil storage tank is arranged on the intermediate portion of outer ring external cylindrical surface.
As further improvement of the utility model, described radiating groove is close to the second seal groove.
the utility model compared with prior art, has the following advantages:the utility model is simple in structure, designs ingeniously, carries out Widening Design by the outer ring of diametrical connection contact bearing, and bearing more can keep the state with axis parallel in the time producing axial float, has improved antiwhip.
Brief description of the drawings
Fig. 1 is the utility model embodiment's structural representation.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in the figure: the angular contact bearing outer ring structure for electric main shaft in embodiment comprises outer ring 1, on the 1 endoporus circumferential surface of described outer ring, be followed successively by the first seal groove 2, outer guiding retainer guide surface 3, dress ball fore shaft face 4 and the second seal groove 5 by first end to the second end, described outer ring 1 second end extends and widens along its axial direction, on the external cylindrical surface of outer ring 1, be provided with oil storage tank 6, extend in outer ring 1 on the endoporus circumferential surface of widened section and be provided with radiating groove 7.In the utility model embodiment, described oil storage tank 6 is preferably arranged on the intermediate portion of outer ring 1 external cylindrical surface.Described radiating groove 7 is close to the second seal groove 5.Because Widening Design is carried out in the outer ring 1 of angular contact bearing, bearing more can keep the state with axis parallel in the time producing axial float, has improved antiwhip.
Claims (3)
1. for the angular contact bearing outer ring structure of electric main shaft, comprise outer ring (1), on the endoporus circumferential surface of described outer ring (1), be followed successively by the first seal groove (2), outer guiding retainer guide surface (3), dress ball fore shaft face (4) and the second seal groove (5) by first end to the second end, it is characterized in that: described outer ring (1) second end extends and widens along its axial direction, on the external cylindrical surface of outer ring (1), be provided with oil storage tank (6), on the endoporus circumferential surface of outer ring (1) extension widened section, be provided with radiating groove (7).
2. the angular contact bearing outer ring structure for electric main shaft as claimed in claim 1, is characterized in that: described oil storage tank (6) is arranged on the intermediate portion of outer ring (1) external cylindrical surface.
3. the angular contact bearing outer ring structure for electric main shaft as claimed in claim 1, is characterized in that: described radiating groove (7) next-door neighbour's the second seal groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420007282.3U CN203770399U (en) | 2014-01-07 | 2014-01-07 | Angular contact bearing outer ring structure of electric spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420007282.3U CN203770399U (en) | 2014-01-07 | 2014-01-07 | Angular contact bearing outer ring structure of electric spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770399U true CN203770399U (en) | 2014-08-13 |
Family
ID=51287593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420007282.3U Expired - Fee Related CN203770399U (en) | 2014-01-07 | 2014-01-07 | Angular contact bearing outer ring structure of electric spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775499A (en) * | 2014-01-07 | 2014-05-07 | 无锡市第二轴承有限公司 | Angular contact bearing outer ring structure for electric main shaft |
-
2014
- 2014-01-07 CN CN201420007282.3U patent/CN203770399U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775499A (en) * | 2014-01-07 | 2014-05-07 | 无锡市第二轴承有限公司 | Angular contact bearing outer ring structure for electric main shaft |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204247971U (en) | A kind of air floated high speed electric mandrel | |
| CN103158025A (en) | Bearing combination support structure for rolling ball lead screw support end | |
| CN203770399U (en) | Angular contact bearing outer ring structure of electric spindle | |
| CN204381421U (en) | A kind of easy broaching tool of direct-connected main shaft | |
| CN203770407U (en) | Angular contact bearing of electric spindle | |
| CN103775503A (en) | Angular contact bearing for electric main shaft | |
| CN103775499B (en) | Angular contact bearing outer ring structure for electro spindle | |
| CN202144830U (en) | Torque bearing | |
| CN204175801U (en) | A kind of structure preventing bearing inner race from skidding | |
| CN203176288U (en) | Support structure for support end of ball screw | |
| CN204893010U (en) | High accuracy self -centering chuck | |
| CN203404248U (en) | Tapered roller bearing | |
| CN203641269U (en) | Novel bidirectional thrust angular contact ball bearing | |
| CN203993304U (en) | A kind of gearshift of gear graduation main spindle box | |
| CN203685865U (en) | Tapered rolling body bearing retainer | |
| CN203756727U (en) | Wear-resisting bearing | |
| CN203214605U (en) | Stop double-row tapered roller bearing | |
| CN204113894U (en) | For the widened tapered roller bearing of stone sawing machine | |
| CN202719030U (en) | Rolling bearing retainer | |
| CN202402493U (en) | Bearing with connection protruding sleeve in inner ring | |
| CN203009567U (en) | Single-raw angular contact ball bearing | |
| CN201799618U (en) | Thrust cylinder roller bearing for machine tool spindle | |
| CN204003987U (en) | A kind of fulcrum ball bearing that moves about | |
| CN201982496U (en) | Nonstandard support roller bearing | |
| CN203649436U (en) | Cutter for machining bearing |
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 |
Granted publication date: 20140813 Termination date: 20170107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |