CN101182865A - Magnetic suspension bearing electric chief axis system with integral shock-absorbing device - Google Patents
Magnetic suspension bearing electric chief axis system with integral shock-absorbing device Download PDFInfo
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- CN101182865A CN101182865A CNA2007103014311A CN200710301431A CN101182865A CN 101182865 A CN101182865 A CN 101182865A CN A2007103014311 A CNA2007103014311 A CN A2007103014311A CN 200710301431 A CN200710301431 A CN 200710301431A CN 101182865 A CN101182865 A CN 101182865A
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- magnetic suspension
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- suspension bearing
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Abstract
The present invention discloses an electric spindle of a magnetic suspension bearing with an integral damping device. The system consists of an electric spindle, a stator and a pedestal. The electric spindle is arranged inside the stator; a stator casing is inserted inside the installing hole of the pedestal along the axial direction of the electric spindle; the casing is provided with a flange which is vertical to the axial line of the electric spindle; an axial damping gasket is arranged between the flange and a flange face at the pedestal; a radial damping gasket is arranged between the outer surface of the casing and the wall of the installing hole. A rubber gasket is added in the technical proposal of the present invention to be a cushioning and energy-absorbing element, which separates the impact caused by the accidental falling of a rotor well, conquers the former disadvantage that only an elastic element protecting the outside of the bearing is used to bear the impact and ensures that the electric spindle of the magnetic bearing with the integral damping device is effective protected. In addition, the present invention with the advantages of simple structure, easy installation and positioning, mature manufacturing technology and low cost, can be widely applied to a supporting system which adopts the electric spindle of the magnetic bearing.
Description
Technical field
The present invention relates to a kind of magnetic suspension bearing electric chief axis system, particularly relate to a kind of magnetic suspension bearing electric chief axis system based on the rubber pad buffer shock-absorbing.
Background technique
Magnetic suspension bearing electric chief axis system has obtained application more and more widely in the spring bearing of all kinds of high-speed rotating machines at present.Its major advantage is that complete non-contact is supported, and does not have friction, does not have and wear and tear and unlubricated dose.High speed rotating along with rotor; the vibration meeting that rotating machinery main shaft part branch produces brings very big harm to whole system; particularly when magnetic suspension bearing inefficacy generation rotor falls; vibration and impact that rotor falls and brought on the protection bearing bring fatal harm to magnetic suspension system probably.
At present, in magnetic suspension bearing electric chief axis system, the main means of vibration damping, protecting against shock of being used for are rigidity, damping and the protection bearings by control system.Control system by magnetic suspension bearing can apply suitable rigidity and damping to rotor, thereby reaches the effect of buffering, vibration damping.But under the practical application condition, the restriction that rigidity that rotor is applied and damping are subjected to objective condition can not arbitrarily change, so the effectiveness in vibration suppression of rotor is unsatisfactory.For falling suddenly of rotor, its impulsive load that causes is all born by the protection bearing.In traditional magnetic suspension bearing rotor, the protection bearing mainly is installed in the two ends up and down of rotor, the axial and impact radially that brings when common bear rotor is fallen.Under many circumstances, because the rotating speed of rotor is high, and the protection bearing is rigidly connected the huge as easy as rolling off a log damage that causes protection bearing and rotor of the impact force when falling with adopting between the magnetic suspension bearing stator.Oscillation damping method at the protection bearing mainly is to adopt elastic element that the protection bearing is supported at present, the impact when falling to relax rotor.Fig. 1, Fig. 2 are a kind of existing damping schemes at protection bearing in the magnetic suspension bearing; its concrete mode is that electric main shaft assembly 1 is installed on the base 3 by its shell 2; protection bearing 4 rigidity are installed on the main shaft in the electric main shaft assembly 1; periphery at protection bearing 4 is equipped with the elastic element 5 that is made of the vibration damping bellows, utilizes the distortion energy absorption characteristics of elastic element 5 to play the effect of vibration damping and protection to protecting bearing 4.But the magnetic suspension bearing rotor is minimum with the gap of stator; if the self-deformation amount of the resilient support members of protection bearing periphery is excessive; still can cause the contact between magnetic suspension bearing rotor and the stator; and lose the meaning of protecting bearing is set; therefore require the elastic deformation amount of resilient support members also must be very little; so that allow the maximum amount of movement of its generation to be complementary when falling with rotor; and so little elastic deformation amount is not enough to absorb the impact that is produced when rotor falls, so the resilient support members of available technology adopting still can not make protection bearing self be effectively protected.
Summary of the invention
Problem at prior art exists the purpose of this invention is to provide a kind of magnetic suspension bearing electric chief axis system that has integral shock-absorbing device.
For achieving the above object, the present invention takes following technological scheme: a kind of magnetic suspension bearing electric chief axis system that has integral shock-absorbing device comprises electric main shaft, stator, base, the electricity main shaft protects Bearing Installation in stator by magnetic suspension bearing and mechanical type, and stator is installed on the base by its housing; Base is provided with mounting hole, during stator case is inserted into mounting hole on the base along electric main-shaft axis direction, the flange plate perpendicular to electric main-shaft axis that is provided with on the housing is installed on the flanged surface that is provided with on the base by link, leave the gap between the adjacent surface of described flange plate and described flanged surface and between the two, be provided with the axial vibration damping packing ring, correspondingly, one of them is provided with axial vibration damping packing ring mounting groove at least for flange plate and flanged surface, leave the gap between described housing outer surface and the described mounting hole hole wall and between the two, be provided with the radially damping washer that at least one distributes along electric main shaft axially spaced-apart, correspondingly, one of them is provided with radially damping washer mounting groove at least for housing outer surface and mounting hole hole wall.
Further, the outside of described flange plate also is provided with an annular platen, this annular platen is connected with described base by link, and flange plate gripped, leave the gap and be provided with the axial vibration damping packing ring equally between the two between annular platen and the flange plate adjacent surface, one of them is provided with axial vibration damping packing ring mounting groove at least for annular platen and flange plate.
Further, described axial vibration damping packing ring and described radially damping washer are made by rubber.
Technical solution of the present invention has the following advantages: 1, owing to adopt rubber washer as the buffering energy-absorbing element, the vibration that produces in the time of can the rotation of effective isolation magnetic suspension bearing electric chief axis, reduce its when work with influencing each other between the base is installed; Buffering energy-absorbing element when 2, adopting rubber washer to fall as rotor, so in the magnetic suspension bearing inefficacy, when rotor falls, the energy-absorbing function that produces when apparatus of the present invention can be utilized axially and radially damping washer is out of shape, slow down rotor and fall impulse force, absorb rotor energy, avoid to help the comparatively mild contact protection bearing of rotor that falls effectively owing to the stressed excessive damage that causes protection bearing and rotor, slow down and continue rotation, until dead halt; 3, adopt rubber washer to support the magnetic suspension bearing electric chief axis assembly, reach simultaneously axially and vibration reduction and cushioning effect radially, it is simple in structure, and installing and locating all is easier to, the manufacturing process maturation, and cost is low.The present invention can be widely used in industrial production and scientific research field, especially can be used for adopting the support system of magnetic suspension bearing electric chief axis.
Description of drawings
Fig. 1 is existing magnetic suspension bearing electric chief axis system structural representation;
Fig. 2 is an A portion enlarged view among Fig. 1;
Fig. 3 is first kind of mode of execution structural representation of the present invention;
Fig. 4 is second kind of mode of execution structural representation of the present invention.
Embodiment
Figure 1 shows that first kind of mode of execution of the present invention; in this embodiment; electricity main shaft 1 protects Bearing Installation in stator 2 by magnetic suspension bearing and mechanical type in a known way; stator 2 housings are inserted in the mounting hole that is provided with on the base 3 along electric main-shaft axis direction; and install and fix by the corresponding flanged surface that is provided with on the flange plate 7 that is provided with on it and the base 3; flange plate 7 is clamped between annular platen 6 and the base 3, and annular platen 6 links to each other with base by link.
Leave the gap between flange plate 7 upper surfaces and the annular platen 6, be provided with axial vibration damping packing ring 8, also leave the gap between the flanged surface on flange plate 7 lower surfaces and the base 3, and be provided with axial vibration damping packing ring 8 equally at this gap location in this gap 2; Leave the gap between the mounting hole hole wall on stator 2 housing outer surface and the base 3, be provided with two the electric main-shaft axis direction in edge radially damping washers 9 spaced apart at this gap location; Correspondingly, on the flange plate 7, on the annular platen 6, base 3 is provided with the axial vibration damping packing ring 8 and the mounting groove of damping washer 9 radially.
Be provided with axial vibration damping packing ring 8 that rubber makes between stator 2 housings and the base 3 and radially behind the damping washer 9; be separated by by damping washer between stator 2 housings and the extraneous attachment face; the impact that produces during working procedure rotor accidental fall can be absorbed by damping washer simultaneously, thereby has avoided only absorbing the existing problem of impacting by the peripheral elastic element that is provided with of protection bearing in the past.
Figure 2 shows that second kind of mode of execution of the present invention.Compare with first kind of mode of execution, be provided with two groups of linkage structures that constitute by flange plate 7, annular platen 6, base 3 in this embodiment, and in every group of linkage structure, all be provided with axial vibration damping packing ring and damping washer radially equally.Because in the practical application of magnetic suspension bearing electric chief axis system, have many occasions need adopt horizontal electric main shaft, and the axial dimension of electric main shaft is very big sometimes, therefore, second kind of mode of execution of the present invention just in time satisfied the demand of this usage mode.
In addition, in actual applications, can come to determine the set axially and radially quantity of damping washer as the case may be.
Claims (3)
1. a magnetic suspension bearing electric chief axis system that has integral shock-absorbing device comprises electric main shaft, stator, base, and electric main shaft protects Bearing Installation in stator by magnetic suspension bearing and mechanical type, and stator is installed on the base by its housing; It is characterized in that, base is provided with mounting hole, during stator case is inserted into mounting hole on the base along electric main-shaft axis direction, the flange plate perpendicular to electric main-shaft axis that is provided with on the housing is installed on the flanged surface that is provided with on the base by link, leave the gap between the adjacent surface of described flange plate and described flanged surface and between the two, be provided with the axial vibration damping packing ring, correspondingly, one of them is provided with axial vibration damping packing ring mounting groove at least for flange plate and flanged surface, leave the gap between described housing outer surface and the described mounting hole hole wall and between the two, be provided with the radially damping washer that at least one distributes along electric main shaft axially spaced-apart, correspondingly, one of them is provided with radially damping washer mounting groove at least for housing outer surface and mounting hole hole wall.
2. the magnetic suspension bearing electric chief axis system that has integral shock-absorbing device as claimed in claim 1, it is characterized in that, the outside of described flange plate also is provided with an annular platen, this annular platen is connected with described base by link, and flange plate gripped, leave the gap and be provided with the axial vibration damping packing ring equally between the two between annular platen and the flange plate adjacent surface, one of them is provided with axial vibration damping packing ring mounting groove at least for annular platen and flange plate.
3. the magnetic suspension bearing electric chief axis system that has integral shock-absorbing device as claimed in claim 1 or 2 is characterized in that, described axial vibration damping packing ring and described radially damping washer are made by rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103014311A CN101182865A (en) | 2007-12-27 | 2007-12-27 | Magnetic suspension bearing electric chief axis system with integral shock-absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103014311A CN101182865A (en) | 2007-12-27 | 2007-12-27 | Magnetic suspension bearing electric chief axis system with integral shock-absorbing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101182865A true CN101182865A (en) | 2008-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007103014311A Pending CN101182865A (en) | 2007-12-27 | 2007-12-27 | Magnetic suspension bearing electric chief axis system with integral shock-absorbing device |
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| CN (1) | CN101182865A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425608A (en) * | 2011-11-23 | 2012-04-25 | 清华大学 | Assembling structure of magnetic suspension bearing rotor and shaft |
| CN103307120A (en) * | 2013-05-16 | 2013-09-18 | 哈尔滨工程大学 | Auxiliary bearing of vertical magnetic suspension flywheel rotor |
| CN104457649A (en) * | 2013-09-12 | 2015-03-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Shaft detection method and device for magnetic suspension system |
| CN107202069A (en) * | 2017-07-20 | 2017-09-26 | 衢州福创工业设计有限公司 | Axle bed is fixed in a kind of damping |
| CN109097252A (en) * | 2018-08-31 | 2018-12-28 | 谢杰锋 | A kind of horizontal food installation for fermenting based on magnetic suspension low power consuming Stirring |
| CN110176828A (en) * | 2019-04-25 | 2019-08-27 | 贵州凯敏博机电科技有限公司 | A kind of motor and method of anti-super high impact overload |
| CN111215947A (en) * | 2015-04-08 | 2020-06-02 | 科控工业自动化德国有限公司 | Tool drive with spindle shaft and method of operation |
| CN111457009A (en) * | 2019-01-21 | 2020-07-28 | 英格索兰工业美国公司 | Active magnetic bearing device |
| CN111791958A (en) * | 2020-06-18 | 2020-10-20 | 东风商用车有限公司 | Aluminum alloy fender support connection structure |
-
2007
- 2007-12-27 CN CNA2007103014311A patent/CN101182865A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425608A (en) * | 2011-11-23 | 2012-04-25 | 清华大学 | Assembling structure of magnetic suspension bearing rotor and shaft |
| CN103307120A (en) * | 2013-05-16 | 2013-09-18 | 哈尔滨工程大学 | Auxiliary bearing of vertical magnetic suspension flywheel rotor |
| CN103307120B (en) * | 2013-05-16 | 2015-08-12 | 哈尔滨工程大学 | A kind of auxiliary bearing of vertical magnetic suspension flywheel rotor |
| CN104457649A (en) * | 2013-09-12 | 2015-03-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Shaft detection method and device for magnetic suspension system |
| CN104457649B (en) * | 2013-09-12 | 2018-12-04 | 珠海格力电器股份有限公司 | Method and device for detecting shaft in magnetic suspension system |
| CN111215947A (en) * | 2015-04-08 | 2020-06-02 | 科控工业自动化德国有限公司 | Tool drive with spindle shaft and method of operation |
| CN111215947B (en) * | 2015-04-08 | 2022-02-11 | 科控工业自动化德国有限公司 | Tool drive with spindle shaft and method of operation |
| CN107202069A (en) * | 2017-07-20 | 2017-09-26 | 衢州福创工业设计有限公司 | Axle bed is fixed in a kind of damping |
| CN109097252A (en) * | 2018-08-31 | 2018-12-28 | 谢杰锋 | A kind of horizontal food installation for fermenting based on magnetic suspension low power consuming Stirring |
| CN111457009A (en) * | 2019-01-21 | 2020-07-28 | 英格索兰工业美国公司 | Active magnetic bearing device |
| US11592060B2 (en) | 2019-01-21 | 2023-02-28 | Ingersoll-Rand Industrial U.S., Inc. | Active magnetic bearing apparatus |
| US12018718B2 (en) | 2019-01-21 | 2024-06-25 | Ingersoll-Rand Industrial U.S., Inc. | Active magnetic bearing apparatus |
| CN110176828A (en) * | 2019-04-25 | 2019-08-27 | 贵州凯敏博机电科技有限公司 | A kind of motor and method of anti-super high impact overload |
| CN111791958A (en) * | 2020-06-18 | 2020-10-20 | 东风商用车有限公司 | Aluminum alloy fender support connection structure |
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Open date: 20080521 |