CN203257902U - Ceramic ball bearing structure of super-speed permanent magnet motor - Google Patents
Ceramic ball bearing structure of super-speed permanent magnet motor Download PDFInfo
- Publication number
- CN203257902U CN203257902U CN 201320250811 CN201320250811U CN203257902U CN 203257902 U CN203257902 U CN 203257902U CN 201320250811 CN201320250811 CN 201320250811 CN 201320250811 U CN201320250811 U CN 201320250811U CN 203257902 U CN203257902 U CN 203257902U
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- Prior art keywords
- bearing
- ball bearing
- deep groove
- ceramic
- groove ball
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a ceramic ball bearing structure of a super-speed permanent magnet motor. The ceramic ball bearing structure comprises a ceramic deep groove ball bearing, a bearing sleeve, a bearing inner cover and a bearing outer cover, wherein the ceramic deep groove ball bearing is sleeved on a motor rotary shaft; the bearing inner cover and the bearing outer cover are coaxial to the ceramic deep groove ball bearing; the bearing sleeve is sleeved outside the ceramic deep groove ball bearing; the bearing inner cover and the bearing outer cover are respectively blocked at the two axial sides of the ceramic deep groove ball bearing, and are adhered with the bearing sleeve. According to the ceramic ball bearing structure of the super-speed permanent magnet motor disclosed by the utility model, the ceramic deep groove ball bearing is adopted, so that the frictional coefficient and the noise under the super-speed are small; moreover, the bearing sleeve, the bearing inner cover and the bearing outer cover, which are matched with the ceramic deep groove ball bearing are simple in structure and convenient to install, so that the motor can operate more safely and more stably.
Description
Technical field
The utility model belongs to machine field, relates in particular to a kind of ultra high speed magneto ceramic ball bearing structure.
Background technique
Motor bearings is the critical piece of motor, is used for carry load, and the support motor main shaft can rotate motor (rotor) stably.
The traditional all-steel bearing of the general employing of motor, traditional all-steel bearing is under the operating mode of electric machine main shaft ultra high speed rotation, and friction factor and noise are larger, are unfavorable for the operation that motor safety is stable, therefore, traditional inapplicable and super high speed motor of all-steel bearing.
The model utility content
Based on this, for above-mentioned technical problem, provide a kind of ultra high speed magneto ceramic ball bearing structure.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of ultra high speed magneto ceramic ball bearing structure, comprise be used to being sheathed on ceramic deep groove ball bearing on the machine shaft, bearing housing, internal bearing cover and the bearing end cover coaxial with described ceramic deep groove ball bearing, described bearing housing is sheathed on outside the described ceramic deep groove ball bearing, described internal bearing cover and bearing end cover keep off respectively the axial both sides of being located at described ceramic deep groove ball bearing, and are affixed with described bearing housing.
This programme also comprises oil baffle disc, and described oil baffle disc is coaxial with described ceramic deep groove ball bearing, and is close to an axial side of being located at described ceramic deep groove ball bearing.
Be equipped with the gap between described internal bearing cover and bearing end cover and the described ceramic deep groove ball bearing.
Described internal bearing cover is plate-like, which is provided with the first outer back-up ring that is positioned at outer rim and can hold the first hollow cylinder that machine shaft passes, the described first outer back-up ring and described bearing housing axially are affixed, and are provided with the gap between the axial end of described the first hollow cylinder and the described ceramic deep groove ball bearing.
Described bearing end cover is plate-like, which is provided with the second outer back-up ring in outer rim, can hold the second hollow cylinder and the inner shield ring between the described second outer back-up ring and the second hollow cylinder that machine shaft passes, the described second outer back-up ring and described bearing housing axially are affixed, described inner shield ring extends axially to the bearing hole of described bearing housing, and radially be affixed with the hole wall of described bearing hole, be provided with the gap between the axial end of described inner shield ring and the described ceramic deep groove ball bearing.
The utility model adopts ceramic deep groove ball bearing, and its friction factor and noise under ultra high speed is less, and the bearing housing supporting with it, internal bearing cover and bearing end cover are simple in structure, easy for installation, and motor can safely and steadily run more.
Description of drawings
Be elaborated below in conjunction with the drawings and specific embodiments the utility model:
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of ultra high speed magneto ceramic ball bearing structure comprises ceramic deep groove ball bearing 110, bearing housing 120, internal bearing cover 130, bearing end cover 140 and oil baffle disc 150.
Pottery deep groove ball bearing 110 is sheathed on the machine shaft 2, and the machine shaft of being furnished with ceramic deep groove ball bearing has the advantages such as high speed, high rigidity, high-power, long lifetime, therefore, is particularly suitable for the high speed operation occasion.
Pottery deep groove ball bearing 110 can adopt SKF pottery deep groove ball bearing.
Bearing housing 120 is sheathed on outside the ceramic deep groove ball bearing 110, is used for radially protecting ceramic deep groove ball bearing 110, makes the stable operation of motor safety.
Internal bearing cover 130 and bearing end cover 140 are coaxial with ceramic deep groove ball bearing 110; both keep off respectively the axial both sides of being located at ceramic deep groove ball bearing 110; and be affixed with bearing housing 120, be used for making the stable operation of motor safety axially protecting ceramic deep groove ball bearing 110.
Be equipped with the gap between internal bearing cover 130 and bearing end cover 140 and the ceramic deep groove ball bearing 110, motor produces heat under ultra high speed is rotated, heat can make ceramic deep groove ball bearing 110 expand, and preset clearance is exactly in order to give ceramic deep groove ball bearing 110 certain thermal expansion space.
Particularly, as shown in Figure 1, internal bearing cover 130 is plate-like, which is provided with the first outer back-up ring 131 that is positioned at outer rim and can hold the first hollow cylinder 132 that machine shaft 2 passes.
The first outer back-up ring 131 axially is affixed with bearing housing 120, is used for making the stable operation of motor safety axially protecting ceramic deep groove ball bearing 110.Be provided with the gap between the axial end of the first hollow cylinder 132 and the ceramic deep groove ball bearing 110.
Bearing end cover 140 is plate-like equally, which is provided with the second outer back-up ring 141 in outer rim, can hold the second hollow cylinder 142 and the inner shield ring 143 between the second outer back-up ring 141 and the second hollow cylinder 142 that machine shaft 2 passes.
The second outer back-up ring 141 axially is affixed with bearing housing 120, and inner shield ring 143 extends axially to the bearing hole of bearing housing 120, and radially is affixed with the hole wall of bearing hole, is provided with the gap between the axial end of inner shield ring 143 and the ceramic deep groove ball bearing 110.The second outer back-up ring 141 and inner shield ring 143 make the stable operation of motor safety for the protection of ceramic deep groove ball bearing 110.
Oil baffle disc 150 is coaxial with ceramic deep groove ball bearing 110, and is close to an axial side of being located at ceramic deep groove ball bearing 110.
Particularly, as shown in Figure 1, oil baffle disc 150 is positioned at ceramic deep groove ball bearing 110 near a side of bearing end cover 140.
Ultra high speed permagnetic synchronous motor rotating speed generally can reach 6500r/min.
But, those of ordinary skill in the art will be appreciated that, above embodiment illustrates the utility model, and be not to be used as restriction of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model the above embodiment's variation, modification.
Claims (5)
1. ultra high speed magneto ceramic ball bearing structure, it is characterized in that, comprise be used to being sheathed on ceramic deep groove ball bearing on the machine shaft, bearing housing, internal bearing cover and the bearing end cover coaxial with described ceramic deep groove ball bearing, described bearing housing is sheathed on outside the described ceramic deep groove ball bearing, described internal bearing cover and bearing end cover keep off respectively the axial both sides of being located at described ceramic deep groove ball bearing, and are affixed with described bearing housing.
2. a kind of ultra high speed magneto ceramic ball bearing structure according to claim 1 is characterized in that also comprise oil baffle disc, described oil baffle disc is coaxial with described ceramic deep groove ball bearing, and is close to an axial side of being located at described ceramic deep groove ball bearing.
3. described a kind of ultra high speed magneto ceramic ball bearing structure according to claim 1 and 2 is characterized in that, is equipped with the gap between described internal bearing cover and bearing end cover and the described ceramic deep groove ball bearing.
4. a kind of ultra high speed magneto ceramic ball bearing structure according to claim 3, it is characterized in that, described internal bearing cover is plate-like, which is provided with the first outer back-up ring that is positioned at outer rim and can hold the first hollow cylinder that machine shaft passes, the described first outer back-up ring and described bearing housing axially are affixed, and are provided with the gap between the axial end of described the first hollow cylinder and the described ceramic deep groove ball bearing.
5. a kind of ultra high speed magneto ceramic ball bearing structure according to claim 4, it is characterized in that, described bearing end cover is plate-like, which is provided with the second outer back-up ring that is positioned at outer rim, can hold the second hollow cylinder and the inner shield ring between the described second outer back-up ring and the second hollow cylinder that machine shaft passes, the described second outer back-up ring and described bearing housing axially are affixed, described inner shield ring extends axially to the bearing hole of described bearing housing, and radially be affixed with the hole wall of described bearing hole, be provided with the gap between the axial end of described inner shield ring and the described ceramic deep groove ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320250811 CN203257902U (en) | 2013-05-09 | 2013-05-09 | Ceramic ball bearing structure of super-speed permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320250811 CN203257902U (en) | 2013-05-09 | 2013-05-09 | Ceramic ball bearing structure of super-speed permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203257902U true CN203257902U (en) | 2013-10-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320250811 Expired - Lifetime CN203257902U (en) | 2013-05-09 | 2013-05-09 | Ceramic ball bearing structure of super-speed permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203257902U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107737952A (en) * | 2017-09-29 | 2018-02-27 | 重庆市普创长顺机械有限公司 | Main spindle box of numerical control system with indexing mechanism |
| CN112065860A (en) * | 2020-09-24 | 2020-12-11 | 哈尔滨电气动力装备有限公司 | Thin oil lubricating structure of rolling bearing |
-
2013
- 2013-05-09 CN CN 201320250811 patent/CN203257902U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107737952A (en) * | 2017-09-29 | 2018-02-27 | 重庆市普创长顺机械有限公司 | Main spindle box of numerical control system with indexing mechanism |
| CN112065860A (en) * | 2020-09-24 | 2020-12-11 | 哈尔滨电气动力装备有限公司 | Thin oil lubricating structure of rolling bearing |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |