CN204239469U - A kind of auxiliary bearing structure of electromagnetic bearing - Google Patents
A kind of auxiliary bearing structure of electromagnetic bearing Download PDFInfo
- Publication number
- CN204239469U CN204239469U CN201420696540.3U CN201420696540U CN204239469U CN 204239469 U CN204239469 U CN 204239469U CN 201420696540 U CN201420696540 U CN 201420696540U CN 204239469 U CN204239469 U CN 204239469U
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- bearing
- elastic sleeve
- rotating shaft
- auxiliary
- rolling bearing
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Abstract
The utility model relates to a kind of auxiliary bearing structure of electromagnetic bearing, it comprises auxiliary rolling bearing, rotating shaft, auxiliary housing washer adopts interference fit joint to be arranged on housing, the inner ring of auxiliary rolling bearing and rotating shaft Spielpassung, also comprise elastic sleeve, between the inner ring that described elastic sleeve is located at auxiliary rolling bearing and rotating shaft, being Spielpassung between elastic sleeve and rotating shaft, is interference fit between the inner ring of elastic sleeve and auxiliary rolling bearing.The utility model is owing to having set up elastic sleeve; auxiliary rolling bearing inner ring is adopted interference fit joint and is arranged in elastic sleeve; housing washer adopts interference fit joint to be arranged on housing; it is Spielpassung between elastic sleeve and rotating shaft; when electromagnetic bearing lost efficacy; rotor drops in elastic sleeve, and elastic sleeve effectively can absorb the ballistic work of rotor landing, thus protects auxiliary rolling bearing and rotating shaft system.
Description
Technical field
The utility model relates to electromagnetic bearing and manufactures field, particularly relates to a kind of auxiliary bearing structure of electromagnetic bearing.
Background technique
At present, auxiliary bearing many employings rolling bearing of electromagnetic bearing or oil-free lubrication sliding bearing, wherein adopt and be directly arranged in rotating shaft during rolling bearing, gap between the inner ring of rolling bearing and rotating shaft is taken as the half of electromagnetic bearing air gap, housing washer adopts interference fit joint to be arranged on housing, when electromagnetic bearing lost efficacy, the moment of causing rotating shaft to contact with rolling bearing produces very large impact to rolling bearing, not only make the bumpy motion of rotating shaft, time serious, also can destroy rolling bearing, electromagnetic bearing and rotating shaft.
Model utility content
The purpose of this utility model is to overcome above defect, provides a kind of auxiliary bearing structure of electromagnetic bearing of smooth running.
For achieving the above object, the technical solution of the utility model is: a kind of auxiliary bearing structure of electromagnetic bearing, it comprises auxiliary rolling bearing, rotating shaft, auxiliary housing washer adopts interference fit joint to be arranged on housing, the inner ring of auxiliary rolling bearing and rotating shaft Spielpassung, also comprise elastic sleeve, between the inner ring that described elastic sleeve is located at auxiliary rolling bearing and rotating shaft, being Spielpassung between elastic sleeve and rotating shaft, is interference fit between the inner ring of elastic sleeve and auxiliary rolling bearing.
The material of described elastic sleeve is aramid fibre material.
Described auxiliary rolling bearing is ball bearing.
The beneficial effects of the utility model are; auxiliary rolling bearing inner ring is adopted interference fit joint and is arranged in elastic sleeve; housing washer adopts interference fit joint to be arranged on housing; it is Spielpassung between elastic sleeve and rotating shaft; when electromagnetic bearing lost efficacy; rotating shaft drops in elastic sleeve, and elastic sleeve effectively can absorb the ballistic work of rotating shaft landing, thus protects auxiliary rolling bearing, electromagnetic bearing and rotating shaft.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
With reference to accompanying drawing, a kind of auxiliary bearing structure of electromagnetic bearing, it comprises ball bearing 1, rotating shaft 3, electromagnetic bearing 4, electromagnetic bearing 4 and ball bearing 1 is respectively equipped with between rotating shaft 3 and housing 5, gap between the inner ring of ball bearing 1 and rotating shaft 3 is taken as the half of electromagnetic bearing 4 air gap, the outer ring of ball bearing 1 adopts interference fit joint to be arranged on housing 5, also comprise elastic sleeve 2, described elastic sleeve 2 is located between the inner ring of ball bearing 1 and rotating shaft 3, it is Spielpassung between elastic sleeve 2 and rotating shaft 3, it is interference fit between the inner ring of elastic sleeve 2 and ball bearing 1, the material of described elastic sleeve 2 is aramid fibre material.
Be more than mode of execution of the present utility model, the scope of the utility model application request protection has more than and is limited to described mode of execution.Those skilled in the art directly derive or associate oher improvements and changes and all should think and be included within protection domain of the present utility model under the prerequisite not departing from spirit of the present utility model and design.
Claims (3)
1. the auxiliary bearing structure of an electromagnetic bearing, it comprises auxiliary rolling bearing, rotating shaft, auxiliary housing washer adopts interference fit joint to be arranged on housing, the inner ring of auxiliary rolling bearing and rotating shaft Spielpassung, it is characterized in that, also comprise elastic sleeve, between the inner ring that described elastic sleeve is located at auxiliary rolling bearing and rotating shaft, being Spielpassung between elastic sleeve and rotating shaft, is interference fit between the inner ring of elastic sleeve and auxiliary rolling bearing.
2. the auxiliary bearing structure of a kind of electromagnetic bearing according to claim 1, is characterized in that, the material of described elastic sleeve is aramid fibre material.
3. according to the auxiliary bearing structure of a kind of electromagnetic bearing according to claim 1 or claim 2, it is characterized in that, described auxiliary rolling bearing is ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696540.3U CN204239469U (en) | 2014-11-20 | 2014-11-20 | A kind of auxiliary bearing structure of electromagnetic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696540.3U CN204239469U (en) | 2014-11-20 | 2014-11-20 | A kind of auxiliary bearing structure of electromagnetic bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239469U true CN204239469U (en) | 2015-04-01 |
Family
ID=52768969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420696540.3U Active CN204239469U (en) | 2014-11-20 | 2014-11-20 | A kind of auxiliary bearing structure of electromagnetic bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239469U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422622A (en) * | 2015-12-28 | 2016-03-23 | 宁波达奋精工轴承有限公司 | Auxiliary device for magnetic bearing |
| CN105422647A (en) * | 2015-12-28 | 2016-03-23 | 宁波达奋精工轴承有限公司 | Auxiliary device for magnetic bearing |
| CN105485165A (en) * | 2015-12-28 | 2016-04-13 | 宁波达奋精工轴承有限公司 | Magnetic bearing air auxiliary device |
| CN105485164A (en) * | 2015-12-28 | 2016-04-13 | 宁波达奋精工轴承有限公司 | Magnetic bearing air-assisted device |
| CN108930715A (en) * | 2018-10-10 | 2018-12-04 | 杭州江河水电科技有限公司 | The two-way adjacent relatively prime magnetic force of one kind and roller mixing Thrust Bearing System |
| CN113663344A (en) * | 2021-07-22 | 2021-11-19 | 周悦 | Food concentration evaporator |
-
2014
- 2014-11-20 CN CN201420696540.3U patent/CN204239469U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422622A (en) * | 2015-12-28 | 2016-03-23 | 宁波达奋精工轴承有限公司 | Auxiliary device for magnetic bearing |
| CN105422647A (en) * | 2015-12-28 | 2016-03-23 | 宁波达奋精工轴承有限公司 | Auxiliary device for magnetic bearing |
| CN105485165A (en) * | 2015-12-28 | 2016-04-13 | 宁波达奋精工轴承有限公司 | Magnetic bearing air auxiliary device |
| CN105485164A (en) * | 2015-12-28 | 2016-04-13 | 宁波达奋精工轴承有限公司 | Magnetic bearing air-assisted device |
| CN105485165B (en) * | 2015-12-28 | 2018-03-09 | 宁波达奋精工轴承有限公司 | A kind of magnetic bearing auxiliary air appliance |
| CN105485164B (en) * | 2015-12-28 | 2018-03-09 | 宁波达奋精工轴承有限公司 | Magnetic bearing auxiliary air appliance |
| CN105422647B (en) * | 2015-12-28 | 2018-07-03 | 徐州给力磁业有限公司 | magnetic bearing auxiliary device |
| CN108930715A (en) * | 2018-10-10 | 2018-12-04 | 杭州江河水电科技有限公司 | The two-way adjacent relatively prime magnetic force of one kind and roller mixing Thrust Bearing System |
| CN108930715B (en) * | 2018-10-10 | 2020-06-19 | 杭州江河水电科技有限公司 | Bidirectional adjacent coprime magnetic force and roller hybrid thrust bearing system |
| CN113663344A (en) * | 2021-07-22 | 2021-11-19 | 周悦 | Food concentration evaporator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |