CN205744913U - A kind of magnetic suspension bearing and turbine - Google Patents
A kind of magnetic suspension bearing and turbine Download PDFInfo
- Publication number
- CN205744913U CN205744913U CN201620728009.9U CN201620728009U CN205744913U CN 205744913 U CN205744913 U CN 205744913U CN 201620728009 U CN201620728009 U CN 201620728009U CN 205744913 U CN205744913 U CN 205744913U
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- electric magnet
- magnetic suspension
- suspension bearing
- thrust button
- rotor
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Abstract
This utility model provides a kind of magnetic suspension bearing, and including rotor and electric magnet, rotor is provided with thrust button, and two end faces of thrust button are respectively provided with electric magnet, two magnetic force between electric magnet and thrust button.This utility model also provides for turbine.Magnetic suspension bearing of the present utility model and turbine structure are simple, are a kind of operationally thrust button and its magnetic suspension bearing that both sides electric magnet is preferable apart from equal rotary balance and stability, power consumption is relatively low and turbine.
Description
Technical field
This utility model relates to magnetic suspension bearing field, in particular to a kind of magnetic suspension bearing and turbine.
Background technology
Magnetic suspension bearing is to utilize magneticaction by rotor suspension in the air, makes do not have machinery to connect between rotor and stator
Touch.Sensor in magnetic suspension bearing, in order to sense the position of rotor in real time, makes rotor be in suspended state all the time.
Current magnetic suspension bearing is provided with at the beginning of a pair electric magnet, the thrust button on two electric magnet and rotor on rotor
Begin apart from equal.But in use, the rotor of magnetic suspension bearing all the time by an axial force, axial force make thrust button with
The distance of two electric magnet, affects the rotating property of magnetic suspension bearing, even makes magnetic suspension bearing not work time serious.
Therefore for solving existing magnetic suspension bearing the most all the time by an axial force, thrust button and two ends are caused
The problem that electric magnet gap is not waited, it is necessary to a kind of simple in construction, operationally thrust button and its both sides electric magnet distance are provided
Equal rotary balance and stability is preferable, energy consumption is relatively low magnetic suspension bearing and turbine.
Utility model content
In view of this, the purpose of this utility model is to overcome deficiency of the prior art, it is provided that a kind of simple in construction,
Operationally thrust button and its magnetic suspension shaft that both sides electric magnet is preferable apart from equal rotary balance and stability, power consumption is relatively low
Hold and turbine.
For solving the problems referred to above, the first solution that this utility model provides is as follows:
A kind of magnetic suspension bearing, including rotor and electric magnet,
Described rotor is provided with thrust button, and two end faces of described thrust button are respectively provided with described electric magnet, two described electromagnetism
Ferrum and the magnetic force of described thrust button.
Further, two described electric magnet and the distance of described thrust button.
Further, the input current of two described electric magnet.
For solving the problems referred to above, the second solution that this utility model provides is as follows:
A kind of turbine, including magnetic suspension bearing, described magnetic suspension bearing includes rotor and electric magnet, and described rotor sets
Thrust button, two end faces of described thrust button is had to be respectively provided with described electric magnet, two described electric magnet and the magnetic force of described thrust button
?.
Further, two described electric magnet and the distance of described thrust button.
Further, the input current of two described electric magnet.
Compared with prior art, its remarkable advantage is this utility model:
Magnetic suspension bearing of the present utility model is provided with two electric magnet in the thrust button both sides of rotor, and two electric magnet are to only
The magnetic force of push-plate differs in size, the axial force of rotor during to balance magnetic suspension bearing work so that thrust button is positioned at two electromagnetism
The centre position of ferrum.This utility model also provides for a kind of turbine with magnetic suspension bearing.Magnetic suspension shaft of the present utility model
Hold and turbine structure is simple, be that one operationally thrust button apart from equal rotary balance and is stablized with its both sides electric magnet
Property is preferable, power consumption is relatively low magnetic suspension bearing and turbine.
For making above-mentioned purpose of the present utility model, feature and advantage can become apparent from understandable, preferred embodiment cited below particularly,
And coordinate appended accompanying drawing, it is described below in detail.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, will use required in embodiment below
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiment of the present utility model, the most should be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used
To obtain other relevant accompanying drawings according to these accompanying drawings.
Fig. 1 shows the first section of a kind of magnetic suspension bearing that this utility model embodiment the first embodiment provided
Structural representation；
Fig. 2 shows the second section of a kind of magnetic suspension bearing that this utility model embodiment the first embodiment provided
Structural representation；
Fig. 3 shows the cross-section structure of a kind of magnetic suspension bearing that this utility model embodiment the second embodiment provided
Schematic diagram.
Main element symbol description:
100,200-magnetic suspension bearing；101-thrust button；102-rotor；103,104,203,204-electric magnet；1031、
1041,2031,2041-coil；1032,1042,2032,2042-iron core.
Detailed description of the invention
For the ease of understanding this utility model, below with reference to relevant drawings, magnetic suspension bearing and turbine are carried out more complete
The description in face.Accompanying drawing gives the preferred embodiment of magnetic suspension bearing and turbine.But, magnetic suspension bearing and turbine can
To be realized by many different forms, however it is not limited to embodiment described herein.On the contrary, provide these embodiments
Purpose is to make the disclosure to magnetic suspension bearing and turbine more thorough comprehensively.
It should be noted that when element is referred to as " being fixed on " another element, and it can be directly on another element
Or element placed in the middle can also be there is.When an element is considered as " connection " another element, and it can be to be directly connected to
To another element or may be simultaneously present centering elements.On the contrary, when element be referred to as " directly existing " another element " on " time,
There is not intermediary element.Term as used herein " vertical ", " level ", "left", "right" and similar statement are simply
For illustrative purposes.
Unless otherwise defined, all of technology used herein and scientific terminology are led with belonging to technology of the present utility model
The implication that the technical staff in territory is generally understood that is identical.Herein in magnetic suspension bearing and the art used in the description of turbine
Language is intended merely to describe the purpose of specific embodiment, it is not intended that limit this utility model.Term as used herein " and/
Or " include the arbitrary and all of combination of one or more relevant Listed Items.
Below in conjunction with the accompanying drawings, detailed description of the invention of the present utility model is elaborated.
Embodiment 1
Seeing also Fig. 1 and Fig. 2, magnetic suspension bearing 100 includes rotor 102 and electric magnet 103,104, on rotor 102
Being provided with thrust button 101,101 two end faces of thrust button are respectively provided with electric magnet 103,104, two electric magnet 103,104 and thrust button
Magnetic force between 101.
Above-mentioned, magnetic suspension bearing 100 is axial magnetic suspension bearing, and rotor 102 is provided with thrust button 101, thrust button 101
Two end faces are provided with electric magnet 103,104, and suction or suction between electric magnet 103,104 and thrust button 101 make thrust
Dish 101 is suspended between two electric magnet 103,104 all the time, does not contacts with electric magnet 103,104.When rotor 102 rotates,
Thrust button 101 changes with the distance of two electric magnet 103,104, more preferable for the rotating property making magnetic suspension bearing 100, should
Ensure being in the middle of electric magnet 103,104 of thrust button 101.
Concrete, magnetic suspension bearing 100 is when being applied on turbine, and the pressure of the air inlet of turbine is less than air outlet
Pressure so that rotor 102 all the time by an axial force, thrust button 101 both sides on rotor 102 be provided with electric magnet 103,
104, set the magnetic force between electric magnet 103,104 and thrust button 101 when the initial state of magnetic suspension bearing 100 and not etc. can not ensure
Magnetic deviation balance when magnetic suspension bearing 100 works, between axial force and the electric magnet 103,104 suffered by rotor 102 so that
Thrust button 101 is operationally in the centre position of electric magnet 103,104.
Additionally, electric magnet 103,104 is switched on producing a kind of device of electromagnetism, electric magnet 103 is by coil 1031 and iron core
1032 compositions, electric magnet 104 is made up of coil 1041 and iron core 1042, and energising time image Magnet equally has magnetic.The present embodiment
In, at the radial distribution plurality of electromagnetic ferrum 103,104 of rotor 102, Fig. 1 and Fig. 2 illustrate only of magnetic suspension bearing 100
The sectional view of the electric magnet 103,104 of part section.It addition, in order to make electric magnet 103,104 power-off demagnetization immediately, we are often
Demagnetization soft iron faster or silicon steel material is used to manufacture iron core 1032,1042.Such electric magnet 103,104 has when energising
Magnetic, after power-off, magnetic disappears the most therewith.The magnetic direction of electric magnet 103,104 is determined by the sense of current, and the sense of current becomes
During change, the direction in magnetic field also changes, and its direction can be judged by Ampere's law；Magnetic field size produced by electric magnet 103,104
Being determined by the size of electric current, the biggest magnetic field of electric current is the strongest, and the strongest produced electromagnetic force in magnetic field is the biggest.
Concrete, in the present embodiment, the material of thrust button 101 is strong magnetic material, electric magnet 103,104 and thrust button
Produce suction between 101, thus realize thrust button 101, i.e. the suspension of rotor 102.
In the present embodiment, two electric magnet 103,104 and the distance of thrust button 101.
Above-mentioned, the Impact direction of rotor 102 when working according to magnetic suspension bearing 100, regulating magnet 103,104 and thrust
The distance of dish 101 balances the axial force of rotor 102.
As it is shown in figure 1, if the Impact direction F of rotor 102 is to the right, then electric magnet 103 is less than with distance A of thrust button 101
Electric magnet 104 and distance B of thrust button 101, operationally, the difference of A and B counteracts power F to magnetic suspension bearing 100, is running
Time, power F drives thrust button 101 to move to right so that A and B is equal, and the suspendability of rotor 102 is more preferable.
As in figure 2 it is shown, if the Impact direction F of rotor 102 is to the left, then electric magnet 103 is more than with distance A of thrust button 101
Electric magnet 104 and distance B of thrust button 101, operationally, the difference of A and B counteracts power F to magnetic suspension bearing 100, is running
Time, power F drives thrust button 101 to move to left so that A and B is equal, and the suspendability of rotor 102 is more preferable.
The axial force F of rotor 102 is determined by the actually used situation of magnetic suspension bearing 100, typically take axial force for
Axial force F when working under the rated power equipped with the turbine of magnetic suspension bearing 100.
This utility model also provides for a kind of turbine, and including magnetic suspension bearing 100, the rotor 102 of magnetic suspension bearing 100 is
The rotating spindle of turbine.
Embodiment 2
As it is shown on figure 3, magnetic suspension bearing 200 includes rotor 102 and electric magnet 203,204, rotor 102 is provided with thrust button
101,101 two end faces of thrust button are respectively provided with electric magnet 203,204, the magnetic between two electric magnet 203,204 and thrust button 101
Power.
Above-mentioned, magnetic suspension bearing 200 is axial magnetic suspension bearing, and rotor 102 is provided with thrust button 101, thrust button 101
Two end faces are provided with electric magnet 203,204, and suction or suction between electric magnet 203,204 and thrust button 101 make thrust
Dish 101 is suspended between two electric magnet 203,204 all the time, does not contacts with electric magnet 203,204.When rotor 102 rotates,
Thrust button 101 changes with the distance of two electric magnet 203,204, more preferable for the rotating property making magnetic suspension bearing 200, should
Ensure being in the middle of electric magnet 203,204 of thrust button 101.
Concrete, magnetic suspension bearing 200 is when being applied on turbine, and the pressure of the air inlet of turbine is more than air outlet
Pressure so that rotor 102 all the time by an axial force, thrust button 101 both sides on rotor 102 be provided with electric magnet 203,
204, set the magnetic force between electric magnet 203,204 and thrust button 101 when the initial state of magnetic suspension bearing 200 and not etc. can not ensure
Magnetic deviation balance when magnetic suspension bearing 200 works, between axial force and the electric magnet 203,204 suffered by rotor 102 so that
Thrust button 101 is operationally in the centre position of electric magnet 203,204.
Additionally, electric magnet 203,204 is switched on producing a kind of device of electromagnetism, electric magnet 203 is by coil 2031 and iron core
2032 compositions, electric magnet 204 is made up of coil 2041 and iron core 2042, and energising time image Magnet equally has magnetic.The present embodiment
In, at the radial distribution plurality of electromagnetic ferrum 203,204 of rotor 102, Fig. 3 illustrate only a local of magnetic suspension bearing 200
The sectional view of the electric magnet 203,204 of section.It addition, in order to make electric magnet 203,204 power-off demagnetization immediately, we often use
Demagnetization soft iron faster or silicon steel material manufacture iron core 2032,2042.Such electric magnet 203,204 has magnetic when energising
Property, after power-off, magnetic disappears the most therewith.The magnetic direction of electric magnet 203,204 is determined by the sense of current, and the sense of current changes
Time magnetic field direction also change, its direction can be judged by Ampere's law；Magnetic field size produced by electric magnet 203,204 by
The size of electric current determines, the biggest magnetic field of electric current is the strongest, and the strongest produced electromagnetic force in magnetic field is the biggest.
Concrete, in the present embodiment, the material of thrust button 101 is strong magnetic material, electric magnet 203,204 and thrust button
Produce suction between 101, thus realize thrust button 101, i.e. the suspension of rotor 102.
In the present embodiment, the input current of two electric magnet 203,204.
Above-mentioned, electric magnet 203,204 is equal with the distance of thrust button 101 when initial state.According to magnetic suspension bearing 200 work
The Impact direction of rotor 102 when making, the input current of regulating magnet 203,204, thus 203,204 pairs of thrusts of regulating magnet
Dish 101 magnetic force difference balances the axial force of rotor 102.
If the Impact direction of rotor 102 is to the right, then to the electric current of electric magnet 203 input less than to electric magnet 204 input
Electric current, operationally, the magnetic force difference of electric magnet 203 and electric magnet 204 counteracts power F to magnetic suspension bearing 200, operationally,
Making thrust disc 101 between electric magnet 203,204, the suspendability of rotor 102 is more preferable.
If the Impact direction of rotor 102 is to the left, then to the electric current of electric magnet 203 input more than to electric magnet 204 input
Electric current, operationally, the magnetic force difference of electric magnet 203 and electric magnet 204 counteracts power F to magnetic suspension bearing 200, operationally,
Making thrust disc 101 between electric magnet 203,204, the suspendability of rotor 102 is more preferable.
Axial force is determined by the actually used situation of magnetic suspension bearing 200, typically takes axial force for equipped with magnetic suspension
Axial force when working under the rated power of the turbine of bearing 200.
Magnetic suspension bearing of the present utility model is provided with two electric magnet in the thrust button both sides of rotor, and two electric magnet are to only
The magnetic force of push-plate differs in size, the axial force of rotor during to balance magnetic suspension bearing work so that thrust button is positioned at two electromagnetism
The centre position of ferrum.This utility model also provides for a kind of turbine with magnetic suspension bearing.Magnetic suspension shaft of the present utility model
Hold and turbine structure is simple, be that one operationally thrust button apart from equal rotary balance and is stablized with its both sides electric magnet
Property is preferable, power consumption is relatively low magnetic suspension bearing and turbine.
In all examples being illustrated and described herein, any occurrence should be construed as merely exemplary, and not
Being as restriction, therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing
Individual accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.
Embodiment described above only have expressed several embodiments of the present utility model, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that, common for this area
For technical staff, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these all belong to
In protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (6)
1. a magnetic suspension bearing, including rotor and electric magnet, it is characterised in that
Described rotor is provided with thrust button, and two end faces of described thrust button are respectively provided with described electric magnet, two described electric magnet with
Magnetic force between described thrust button.
Magnetic suspension bearing the most according to claim 1, it is characterised in that two described electric magnet and described thrust button away from
From.
Magnetic suspension bearing the most according to claim 1, it is characterised in that the input current of two described electric magnet.
4. a turbine, it is characterised in that
Including magnetic suspension bearing, described magnetic suspension bearing includes that rotor and electric magnet, described rotor are provided with thrust button, described only
Two end faces of push-plate are respectively provided with described electric magnet, the magnetic force between two described electric magnet and described thrust button.
Turbine the most according to claim 4, it is characterised in that the distance of two described electric magnet and described thrust button is not
Deng.
Turbine the most according to claim 4, it is characterised in that the input current of two described electric magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620728009.9U CN205744913U (en) | 2016-07-08 | 2016-07-08 | A kind of magnetic suspension bearing and turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620728009.9U CN205744913U (en) | 2016-07-08 | 2016-07-08 | A kind of magnetic suspension bearing and turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205744913U true CN205744913U (en) | 2016-11-30 |
Family
ID=57378397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620728009.9U Active CN205744913U (en) | 2016-07-08 | 2016-07-08 | A kind of magnetic suspension bearing and turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205744913U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387562A (en) * | 2017-08-29 | 2017-11-24 | 南京磁谷科技有限公司 | A kind of coaxial electromagnet structure of thrust magnetic bearing |
| CN108488343A (en) * | 2018-03-23 | 2018-09-04 | 南京理工大学 | A kind of high life Variable lead mechanism based on electromagnetic force equilibrium |
-
2016
- 2016-07-08 CN CN201620728009.9U patent/CN205744913U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387562A (en) * | 2017-08-29 | 2017-11-24 | 南京磁谷科技有限公司 | A kind of coaxial electromagnet structure of thrust magnetic bearing |
| CN108488343A (en) * | 2018-03-23 | 2018-09-04 | 南京理工大学 | A kind of high life Variable lead mechanism based on electromagnetic force equilibrium |
| CN108488343B (en) * | 2018-03-23 | 2020-07-31 | 南京理工大学 | High-life variable-lead screw mechanism based on electromagnetic force balance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Magnetic suspension bearing and turbine Effective date of registration: 20180523 Granted publication date: 20161130 Pledgee: Guangdong Nanhai Rural Commercial Bank branch branch of Limited by Share Ltd Pledgor: FOSHAN GENESIS AMB TECH CO., LTD. Registration number: 2018440000130 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210112 Granted publication date: 20161130 Pledgee: Guangdong Nanhai Rural Commercial Bank branch branch of Limited by Share Ltd. Pledgor: FOSHAN GENESIS AMB TECH Co.,Ltd. Registration number: 2018440000130 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |