CN204387119U - The oil-air lubrication structure of electro spindle - Google Patents
The oil-air lubrication structure of electro spindle Download PDFInfo
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- CN204387119U CN204387119U CN201420779520.2U CN201420779520U CN204387119U CN 204387119 U CN204387119 U CN 204387119U CN 201420779520 U CN201420779520 U CN 201420779520U CN 204387119 U CN204387119 U CN 204387119U
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- blind hole
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Abstract
The oil-air lubrication structure of electro spindle, comprises axle core, bearing support, the bearing of at least two arranged along the length direction of axle core and the bearing spacer of at least one, the rolling element that each bearing comprises inner ring, outer ring and is located between inner ring and outer ring; Bearing and bearing spacer are arranged at bearing support inside, and bearing spacer is located between adjacent two bearings, and axle core is coordinated with bearing support pivotable by bearing, and bearing support is provided with the lubrication channel for oil-feed.The utility model is by the design of circular groove, blind hole, upper oil outlet and lower oil outlet, a lubrication channel can be realized lubricate adjacent upper and lower bearing simultaneously, the quantity of lubrication channel can be reduced, reduce part difficulty of processing, moreover, the circumference of multiple blind hole annularly groove is uniformly distributed, upper oil outlet and lower oil outlet are interspersed, and make lubricating uniform, can reach better lubrication effect.
Description
Technical field
The utility model relates to the oil-air lubrication structure of electro spindle.
Background technique
The lubrication of bearing is generally divided into grease lubrication and oil-air lubrication, the bearing of same structure model, and oil-air lubrication can reach higher rotating speed and efficiency than grease lubrication.
Electro spindle comprises bearing support, bearing and axle core, and bearing is arranged at bearing support inside, and axle core is coordinated with bearing support pivotable by bearing.The oil-air lubrication of existing electro spindle is generally by offering lubrication channel on bearing support, thus oil gas spray is located on bearing, in order to lubricate more equably, such oil-air lubrication structure needs to offer more lubrication channel, like this, not only make the difficulty of processing comparatively large, and the space that more lubrication channel takies is comparatively large, is not suitable for the electro spindle that structure is comparatively compact.
Model utility content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of high lubricating effect and can reduces the quantity of lubrication channel, reduces the oil-air lubrication structure of the electro spindle of part difficulty of processing.
For achieving the above object, the utility model adopts following technological scheme:
The oil-air lubrication structure of electro spindle, comprises axle core, bearing support, the bearing of at least two arranged along the length direction of axle core and the bearing spacer of at least one, the rolling element that each bearing includes inner ring, outer ring and is located between inner ring and outer ring; Bearing and bearing spacer are arranged at bearing support inside, and bearing spacer is located between adjacent two bearings, and axle core is coordinated with bearing support pivotable by bearing, and bearing support is provided with the lubrication channel for oil-feed; Bearing spacer is provided with the circular groove being communicated in lubrication channel near the outside of bearing support; Bearing spacer is inwardly provided with multiple blind hole inside circular groove; The medial extremity of one of them blind hole of adjacent two blind holes is communicated with by the gap between upper oil outlet and the inside and outside circle of the bearing above bearing spacer, and the medial extremity of another blind hole is communicated with by the gap between lower oil outlet and the inside and outside circle of the bearing below bearing spacer.
The circumference of multiple blind hole annularly groove is uniformly distributed.
Bearing spacer comprises inner spacing collar and outer separator, can rotate between two inner rings that inner spacing collar is located in adjacent two bearings with axle core, keeps transfixion between two outer rings that outer separator is located in adjacent two bearings; Circular groove, blind hole, upper oil outlet and lower oil outlet are all located on outer separator.
The central shaft of upper oil outlet or the central shaft of lower oil outlet all form with the plumb cut of bearing the angle being less than 90 degree.
The beneficial effects of the utility model are:
Compared to prior art, the utility model is by the design of circular groove, blind hole, upper oil outlet and lower oil outlet, a lubrication channel can be realized lubricate adjacent upper and lower bearing simultaneously, the quantity of lubrication channel can be reduced, reduce part difficulty of processing, moreover, upper oil outlet and lower oil outlet are interspersed, and make lubricating uniform, can reach better lubrication effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of Fig. 1 middle (center) bearing spacer;
Wherein: 10, axle core; 20, bearing support; 21, lubrication channel; 30, bearing; 31, inner ring; 32, outer ring; 33, rolling element; 40, bearing spacer; 41, circular groove; 401, inner spacing collar; 402, outer separator; 42, blind hole; 43, upper oil outlet; 44, lower oil outlet.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the utility model is described further:
As depicted in figs. 1 and 2, the oil-air lubrication structure of electro spindle of the present utility model, comprise axle core 10, bearing support 20, the bearing 30 of at least two arranged along the length direction of axle core 10 and the bearing spacer 40 of at least one, the rolling element 33 that each bearing 30 comprises inner ring 31, outer ring 32 and is located between inner ring 31 and outer ring 32; It is inner that bearing 30 and bearing spacer 40 are arranged at bearing support 20, and bearing spacer 40 is located between adjacent two bearings 30, and axle core 10 is coordinated with bearing support 20 pivotable by bearing 30, and bearing support 20 is provided with the lubrication channel 21 for oil-feed; Bearing spacer 40 is provided with the circular groove 41 being communicated in lubrication channel 21 near the outside of bearing support 20; Bearing spacer 40 is inwardly provided with multiple blind hole 42 inside circular groove 41; The medial extremity of one of them blind hole 42 of adjacent two blind holes 42 is communicated with by the gap between the inner ring 31 of upper oil outlet 43 and the bearing 30 above bearing spacer 40 and outer ring 32, and the gap that the medial extremity of another blind hole 42 passes through between the inner ring 31 of lower oil outlet 44 and the bearing 30 below bearing spacer 40 and outer ring 32 is communicated with.
When lubricating, satisfactory oil gas enters into circular groove 41 from the lubrication channel 21 of bearing support 20, the effect of oil pressure makes oil gas can be full of whole circular groove 41, then, oil gas is by being located at multiple blind holes 42 of circular groove 41 inwall, enter into oil outlet 43 or lower oil outlet 44, gap between the inner ring 31 of the direct directive bearing 30 of oil gas sprayed from upper oil outlet 43 or lower oil outlet 44 and outer ring 32, arrive the point of contact of inner ring 31 or outer ring 32 and rolling element 33, thus realize the lubrication and cooling of bearing 30.
The utility model is by the design of circular groove 41, blind hole 42, upper oil outlet 43 and lower oil outlet 44, a lubrication channel 21 can be realized lubricate adjacent upper and lower bearing 30 simultaneously, the quantity of lubrication channel 21 can be reduced, reduce part difficulty of processing, moreover, upper oil outlet 43 and lower oil outlet 44 are interspersed, make lubricating uniform, better lubrication effect can be reached.
Further, the circumference of multiple blind hole 42 annularly groove 41 is uniformly distributed, and can make lubricating uniform further like this, can reach better lubrication effect.
Further, upper oil outlet 43 and lower oil outlet 44 can design different diameters and quantity according to different bearings 30 and different rotation speed requirements.
Further, the central shaft of upper oil outlet 43 and the central shaft of lower oil outlet 44 all form with the plumb cut of bearing 30 angle being less than 90 degree, like this, the angle of oil outlet 43 and lower oil outlet 44 can be adjusted, make oil gas spray the point of contact being located at inner ring 31 or outer ring 32 and rolling element 33.In the present embodiment, the large I of angle designs according to the wrapping angle of different bearing 30.
Further, bearing spacer 40 comprises inner spacing collar 401 and outer separator 402, can rotate with axle core 10 between two inner rings 31 that inner spacing collar 401 is located in adjacent two bearings 30, keep transfixion between two outer rings 32 that outer separator 402 is located in adjacent two bearings 30; Circular groove 41, blind hole 42, upper oil outlet 43 and lower oil outlet 44 are all located on outer separator 402.
To one skilled in the art, according to technological 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 (4)
1. the oil-air lubrication structure of electro spindle, comprises axle core, bearing support, the bearing of at least two arranged along the length direction of axle core and the bearing spacer of at least one, the rolling element that each bearing includes inner ring, outer ring and is located between inner ring and outer ring; Bearing and bearing spacer are arranged at bearing support inside, and bearing spacer is located between adjacent two bearings, and axle core is coordinated with bearing support pivotable by bearing, and bearing support is provided with the lubrication channel for oil-feed; It is characterized in that, bearing spacer is provided with the circular groove being communicated in lubrication channel near the outside of bearing support; Bearing spacer is inwardly provided with multiple blind hole inside circular groove; The medial extremity of one of them blind hole of adjacent two blind holes is communicated with by the gap between upper oil outlet and the inside and outside circle of the bearing above bearing spacer, and the medial extremity of another blind hole is communicated with by the gap between lower oil outlet and the inside and outside circle of the bearing below bearing spacer.
2. the oil-air lubrication structure of electro spindle as claimed in claim 1, is characterized in that, the circumference of multiple blind hole annularly groove is uniformly distributed.
3. the oil-air lubrication structure of electro spindle as claimed in claim 1, it is characterized in that, bearing spacer comprises inner spacing collar and outer separator, can rotate with axle core between two inner rings that inner spacing collar is located in adjacent two bearings, keep transfixion between two outer rings that outer separator is located in adjacent two bearings; Circular groove, blind hole, upper oil outlet and lower oil outlet are all located on outer separator.
4. the oil-air lubrication structure of electro spindle as claimed in claim 1, it is characterized in that, the central shaft of upper oil outlet and the central shaft of lower oil outlet all form with the plumb cut of bearing the angle being less than 90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420779520.2U CN204387119U (en) | 2014-12-10 | 2014-12-10 | The oil-air lubrication structure of electro spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420779520.2U CN204387119U (en) | 2014-12-10 | 2014-12-10 | The oil-air lubrication structure of electro spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204387119U true CN204387119U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420779520.2U Active CN204387119U (en) | 2014-12-10 | 2014-12-10 | The oil-air lubrication structure of electro spindle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057710A (en) * | 2015-07-17 | 2015-11-18 | 安阳工学院 | Pressure-equalization air sealing and pinhole inward-stretching type lubricating device for motorized spindle |
| CN107345539A (en) * | 2017-07-18 | 2017-11-14 | 广州市昊志机电股份有限公司 | Oil-air lubrication spacer component |
| CN110594298A (en) * | 2019-10-02 | 2019-12-20 | 深圳市爱贝科精密机械有限公司 | Oil-gas lubrication mechanism for front end bearing of main shaft |
| CN113833768A (en) * | 2021-09-26 | 2021-12-24 | 珠海格力电器股份有限公司 | Bearing lubricating structure and motor |
-
2014
- 2014-12-10 CN CN201420779520.2U patent/CN204387119U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057710A (en) * | 2015-07-17 | 2015-11-18 | 安阳工学院 | Pressure-equalization air sealing and pinhole inward-stretching type lubricating device for motorized spindle |
| CN107345539A (en) * | 2017-07-18 | 2017-11-14 | 广州市昊志机电股份有限公司 | Oil-air lubrication spacer component |
| CN110594298A (en) * | 2019-10-02 | 2019-12-20 | 深圳市爱贝科精密机械有限公司 | Oil-gas lubrication mechanism for front end bearing of main shaft |
| CN113833768A (en) * | 2021-09-26 | 2021-12-24 | 珠海格力电器股份有限公司 | Bearing lubricating structure and motor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |